Sibling Rivalry: Helping Brothers and Sisters Be Kind to Each Other

Every parent of more than one child knows the soundtrack: the squabble over the one blue cup, the howl of "it's not fair," the sudden alliance that dissolves into a wrestle two minutes later. It can be wearing, and it's easy to worry that all the friction means your children don't love each other — or that you're doing something wrong. Neither is usually true. Brothers and sisters are learning, under the same roof and often for the same toys and the same lap, how to share, take turns and handle big feelings. Home is where they practise, which is exactly why they practise on each other. Your job isn't to silence every disagreement; it's to keep things kind and quietly teach the skills that let them sort things out.

Give them a hero who learns to share

One of the simplest ways to grow kindness between siblings is to let them fall in love with a character who learns it first — at a calm moment, with nothing of their own at stake. A story lets a child rehearse generosity and making peace before they're nose-to-nose over the last biscuit. In Sharing Silver, Silver the Super Pup meets a greedy dog named Bandit who grabs more than his share and leaves others out — and, with Silver's gentle example, discovers that kindness and giving back come around to fill his own bowl too. Read together on a quiet evening, it gives your children a shared language: "remember how Bandit felt when he wouldn't share?" lands far more softly than a lecture in the heat of a row, because they're cheering for the kind choice rather than being told off for the unkind one.

“You get what you give — and the more you give, the more you get.”

Sharing Silver — a superhero training story that turns sharing, kindness and giving into a superpower your child wants to practise. A warm, no-nagging way to start the conversation about treating a brother or sister kindly.

View Sharing Silver on Amazon

Stories work because they hand children the feelings and the words for kindness while there's no argument to win. It's far easier to be generous to your sister tomorrow when you've already cheered a pup on for doing the same thing tonight. (For more, see our pick of the best books about sharing and kindness.)

Why siblings fight in the first place

Understanding what's really fuelling the rivalry makes it much easier to ease. A few common drivers sit underneath most sibling squabbles:

• Competition for you. More than any toy, children compete for a parent's time and attention. When a child isn't sure there's enough of you to go around, they jostle for it — and a sibling is the obvious rival.
• A fierce sense of fairness. Young children are exquisitely tuned to fairness and notice the smallest differences in how they feel they're treated. Research suggests that comparisons and perceived favouritism tend to sharpen rivalry.
• Different ages and temperaments. A cautious child and a boisterous one, or a toddler and a school-age sibling, simply want different things at different speeds — and that mismatch rubs.
• Tired, hungry, bored. Most epic battles erupt when someone is running low on sleep, food or things to do. The trigger is rarely the real cause.

None of this means your children dislike each other. It means they're normal small people learning to live alongside another normal small person. Naming the real driver — "you both want a turn with me right now" — is often the first step to calming it.

Gentle ways to ease the rivalry

1. Stop comparing — and drop the labels

"Why can't you be tidy like your brother?" stings far longer than we mean it to, and even sunny labels ("she's the clever one," "he's the wild one") box children in and pit them against each other. Research suggests differential treatment and comparison intensify rivalry. Try to notice and describe each child's own efforts rather than ranking them against a sibling — it quietly removes one of the biggest sources of competition.

2. Give each child a little one-on-one time

A child who feels securely connected to you has far less to fight for. It doesn't take much — ten unhurried minutes of reading, kicking a ball or just chatting, that belongs to that child alone. Research consistently links a secure bond with a parent to less rivalry between siblings: when children know they have your attention, they don't have to compete for it.

3. Coach conflict, don't referee it

Step in at once for anything unsafe or cruel. But for the everyday squabbles, rushing in to decide who's right tends to backfire — one child walks away the "favourite," the other the "culprit," and the rivalry grows. Instead, help them name the problem and their feelings, then guide them to find a fair fix together: "You both want the train. What could we do so it feels fair to each of you?" It's slower in the moment, but it builds the listening, compromise and empathy that let them sort the next one out without you. Child-development specialists call this kind of support co-regulation — young children borrow a calm adult's steadiness before they can manage strong feelings on their own, and they gradually take the skill in as their own. Stepping in as a calm coach rather than a judge is co-regulation in action.

4. Make sharing and turns concrete

"Share nicely" is vague; a kitchen timer is not. Clear, predictable rules take the heat out of disputes — a few minutes each with a timer, "whoever didn't choose last time chooses now," or a shelf where special toys can be put away and don't have to be shared. When the rule does the deciding, you stop being the judge, and fairness stops being a daily battle. Our guide to what to do when your child won't share toys has more on making this stick.

5. Catch them being kind

We tend to comment on the fighting and let the peaceful moments pass unmarked. Flip it: when you spot one child help, wait or share, say so warmly and specifically — "you noticed she was sad and gave her a turn, that was really kind." Children repeat what gets your attention, so shining a light on kindness grows more of it. A few simple kindness activities for kids give them easy, everyday chances to practise.

6. Build empathy between them

A lot of sibling unkindness is simply a child not yet picturing how the other one feels. Gently invite it: "Look at his face — how do you think he felt when his tower fell?" Helping each child step into the other's shoes is the heart of treating a sibling kindly. Our guide to teaching a child empathy walks through how that skill develops and easy ways to nurture it, and when feelings do boil over, helping them say a real sorry turns a rupture into repair.

Sibling rivalry age by age: what to expect and what helps

Rivalry looks different at every stage, because the skill underneath it — sharing your attention, waiting a turn, imagining how someone else feels — is still being built. Knowing what's typical for your children's ages takes a lot of the worry out of it, and it tells you which gentle move is likely to land. Ages below are a rough guide, not a timetable; every child arrives at these in their own time.

Toddlers (roughly 1–3 years)

At this age a child lives very much in the now, and "mine" is one of the first big ideas they grip hard. They aren't being selfish — toddlers genuinely don't yet grasp that a toy can be lent and still come back, and they can't picture another child's wishes the way an older one can. Expect grabbing, the odd push, and tears that pass as fast as they arrived. What helps most is close supervision and simple, concrete turn-taking ("Sam has it now, then it's your turn") backed by a timer, plenty of distraction and swapping in a second toy, and keeping a few precious things out of the shared mix. Big lectures sail straight over a toddler's head; short words, a calm body and a quick redirect do the real work.

Preschoolers (roughly 3–5 years)

Now a powerful sense of fairness arrives, and with it the running scoreboard: who got the bigger slice, who went first, who sat in the good seat. Preschoolers are starting to name feelings and to understand that other people have them too, which is exactly the window where stories, role-play and simple feeling-words pay off. Tattling often peaks here as children test what's fair and what you'll do about it. This is the stage to teach a few conflict words ("I'm using it, you can have it next"), to read together about kindness when everyone is calm, and to praise the sharing you see out loud so it sticks. A character who learns to share, met at a peaceful moment, gives a preschooler a model to copy when the real test comes.

School age (roughly 6–9 years)

Competition sharpens as children compare themselves more — who's faster, cleverer, better at football, more grown-up. Rivalry at this age is often less about a toy and more about status and fairness, and the squabbles can get wordier and more strategic. The upside is that school-age children can genuinely take another's point of view and negotiate, so they respond well to being coached rather than refereed: a quick family rule, a turn at chairing a "what would be fair" chat, jobs they tackle as a team. Keep retiring the comparisons ("you're the sporty one") that quietly tell them they're in a race, and give each child something that's theirs to be proud of that isn't measured against a sibling.

Tweens (roughly 10–12 years) and beyond

As children head toward the teen years, rivalry usually shifts again — toward privacy, independence and whether the rules feel even ("how come she gets to stay up later?"). There's often less physical squabbling and more about feeling respected and treated as an individual. Clear, consistent boundaries that flex sensibly with age, plus the chance to be heard, matter more now than refereeing ever could. Many siblings who clashed when young grow genuinely close as the competition for a parent's lap fades and shared history takes over.

The new-baby flashpoint

A new arrival is one of the most common triggers of all, at any age. An older child who suddenly shares your time can become clingy, regress a little, or act out toward the baby — that's jealousy doing its job, not naughtiness, and it usually settles. It helps to give the older child a special role ("you're my big helper"), to protect small pockets of one-on-one time that are just theirs, to let them safely name the not-so-nice feelings ("sometimes you wish the baby would go back — that's okay to say"), and to notice their gentleness with the baby out loud. Reading together about a kind older sibling, or about sharing and including others, gives those big feelings a softer place to land.

When the rivalry feels bigger than the usual squabbles

A new baby, a house move, starting school or a hard patch in family life can crank rivalry up for a while — that's a normal response to change, and it usually settles as everyone finds their feet. Warm, consistent parenting, where the limits are steady and the affection is generous, tends to support kinder sibling relationships over time. If the conflict is frequent, one-sided or tipping into genuine aggression that worries you, or if one child seems persistently miserable, it's worth a chat with your GP, health visitor or your child's teacher. Reaching out isn't an overreaction; it's exactly the sort of early support that helps.

Sibling rivalry isn't a problem to be eliminated so much as a relationship to be coached. Ease the competition for your attention, retire the comparisons, make fairness concrete, and keep shining a light on kindness — and slowly the balance shifts. The squabbles won't vanish overnight, but more and more of the time, your children will choose to be kind to each other, because you've helped them learn how.

This is part of our bigger guide on raising a kind, sharing friend. You might also like when your child won't share toys and how to teach a child empathy.