Sibling Rivalry: Stop the Fighting Without Refereeing

Sibling rivalry is normal, and it is also one of the best training grounds your children will ever have. You do not have to stop every fight. Your job is to keep everyone safe, step out of the referee role, and coach your children to solve problems themselves, a little more each month.

Try tonight: the 60-second version

Name the problem, not the culprit. "I see two kids and one tablet. That's tricky."
Reflect both sides. "You want to finish your game. You've been waiting ages."
Hand it back. "I trust you two to find a fair way. I'll be in the kitchen."
Give each child 10 minutes of one-to-one time before bed. It is the cheapest jealousy medicine there is.

Why siblings fight so much

Siblings share the most precious thing in the house: you. Every fight over a toy is partly a question about attention, fairness and place in the family. Add tiredness, hunger, a small age gap and a long rainy weekend, and squabbles are almost guaranteed.

The good news is that conflict is also where children learn. Developmental psychologist Laurie Kramer, who has spent decades studying siblings, argues that sibling relationships are a natural laboratory for emotional understanding and self-regulation. Children who learn to manage disagreements with a brother or sister carry those skills into friendships and, later, relationships.

Her team's More Fun with Sisters and Brothers programme taught young siblings skills like seeing the other person's point of view, managing anger and proposing solutions. The children's relationships improved, which tells us something important: getting along is a skill you can teach, not a personality trait.

Say this instead of that

Instead of…	Try…
"Who started it?"	"Looks like you both have a problem. What happened?"
"You're older, you should know better."	"It's hard when your sister knocks your things. Let's protect your tower."
"Why can't you be more like your brother?"	(Never compare. Describe only the child in front of you.)
"Say sorry right now!"	"When you're ready, how could you help him feel better?"
"Stop being so jealous."	"Sometimes you wish you had me all to yourself. That makes sense."
"Fine, nobody gets it." (every time)	"You've got two minutes to find a plan, or the toy takes a rest."

Age by age: what to expect and what helps

Age	What rivalry looks like	What helps most
Toddler (1–3)	Grabbing, pushing, hitting a new baby, regression	Supervise closely, block hitting calmly, give the toddler "big sibling" jobs, keep their routines steady
Preschool (3–5)	"Mine!", tattling, fierce fairness claims	Sand timers for turns, simple scripts ("Can I have it when you're done?"), lots of praise for cooperation
School age (6–9)	Scorekeeping, teasing, competition over grades and games	Family rules made together, problem-solving meetings, private spaces for each child
Tweens (10–12)	Insults, privacy battles, mocking	Stay out of minor spats, protect privacy, step in firmly on cruelty, keep one-to-one time alive

Myth vs fact

Myth: Good parents raise siblings who never fight. Fact: Conflict between siblings is near universal. Calm repair matters more than zero fights.
Myth: Fair means equal. Fact: Fair means each child gets what they need. A baby needs more cuddles; a ten-year-old needs more privacy.
Myth: Sibling fighting is harmless "just kids being kids". Fact: Normal squabbles are fine, but repeated one-sided aggression is linked to anxiety and distress, as with peer bullying (Tucker and colleagues, Pediatrics, 2013).
Myth: If you ignore it, they'll sort it out. Fact: Stepping back from minor squabbles helps, but younger children still need coaching to learn how to sort it out.

One evening, step by step

It's 5.30 pm. Leo (7) is building a Lego spaceship. Ava (4) wants the blue piece he's using and grabs it. Leo shoves her. Ava screams.

Safety first. You walk over, kneel between them and calmly say, "I won't let anyone push. I won't let anyone grab." No lecture yet.
Calm the bodies. Ava is sobbing, so you hold her while saying to Leo, "You were really upset when she took your piece." His shoulders drop a little.
Describe the problem. "Ava wants a blue piece. Leo needs it for his ship. That's a real problem."
Invite ideas. Leo says, "She can have the other blue piece." Ava shakes her head. You wait. Leo adds, "She can build the landing pad next to my ship."
Accept their plan, even if it's not yours. "That sounds like a plan. Ava, want to try?" She nods.
Repair later. At bedtime you notice, "You two found a solution all by yourselves today." No mention of the shove. The win is the story they remember.

This won't work every time. But each run-through is a rehearsal, and rehearsals add up.

Your sibling peace checklist

☐ Each child gets 10–15 minutes of one-to-one time most days
☐ Family rules are short and positive ("We keep hands gentle")
☐ Each child has a few "special" belongings they never have to share
☐ Sand timer or turn-taking system for high-demand toys
☐ No comparisons out loud, even positive ones
☐ Step in for safety; step back for minor squabbles
☐ Notice and name cooperation when it happens
☐ Family meeting once a week to solve recurring flashpoints

If this doesn't work

Fights cluster at certain times? Look at the clock. Before dinner and after school are classic flashpoints. A snack and some separate time may solve more than any script.
One child keeps "losing"? Check that the older child isn't always asked to give in. Unfair patterns fuel resentment.
Jealousy over a new baby? Expect regression. Read our guide to toddler tantrums and give the older child a special role with the baby.
It's getting physical a lot? Separate them for a calm-down, then use the steps in our big feelings guide to talk about it afterwards.
They refuse to make up? Don't force it. Teach repair gently, as in how to teach kids to apologise, and let real apologies come later.

When to talk to a professional

Speak to your doctor, a family therapist or your child's school if one child is regularly frightened of a sibling, if there are injuries, if aggression is constant and one-sided, or if fighting is affecting sleep, school or mood. Sibling bullying deserves the same seriousness as bullying at school.

Bedtime helpers

Stories can say what lectures can't. The Star Who Wanted to Be First gently explores the urge to always win, and Mira Builds a Bridge is about two families who stopped speaking and the patient work of bringing them back together. Read one together after a hard day, and let your children draw their own parallels.

For more on helping children get along with others, see how to help your child make friends, why process praise beats "good job", and how to support them when starting school shakes everything up.

Frequently asked questions

Should I make my children say sorry to each other?

A forced sorry teaches children to say a word, not to repair. Once everyone is calm, ask what would help the other child feel better: a hug, fixing the tower, a drawing. Repair actions teach more than a mumbled apology.

How do I know who started it?

Usually you cannot, and you do not need to. Describe the problem rather than hunting for a culprit: 'Two children, one scooter. That is a hard problem. What can you do?' This keeps you out of the judge's chair.

Is it normal for siblings to fight every day?

Frequent squabbles are very common, especially between children close in age. Research suggests young siblings can clash several times an hour during play. What matters is whether conflicts get resolved and whether anyone is regularly hurt or frightened.

Is it better to treat siblings exactly the same?

Children need fair treatment, not identical treatment. Each child gets what they need, when they need it. Saying 'You will each get what you need' works better than trying to cut every cake into perfectly equal slices.

When is sibling fighting more than rivalry?

When one child is consistently the target, is afraid, gets hurt, or the hurting is ongoing and one-sided. A large US study linked sibling aggression to poorer mental health, so treat it as seriously as bullying between peers.

Sibling Rivalry: How to Stop the Fighting Without Playing Referee