England: I think its 16
Eighteen.
Is that between a child's parents? if so it is ultimately up to the parents. But, most parents will let the child decide who they want to live with.
You used the word child. And legally they are a child and the parents decide where they are to live.
Age of Majority on your state
In West Virginia, a child can decide which parent they want to live with when they are 18.
It depends on the child's age and where he or she lives.
In England and Wales you have to be 16. By then you can move out if you want and as long as you do good you can stay but if you don't live a good life your parents can demand you back.
A 15 year old cannot move out of the home without the parents' consent. If the parents agree, the child can live with her brother.
No, that is up to your parents.
You have to be 18.
They have to be 18.
They have to be 18yo.
18 years