When they are 18. Before that it's the parents or the court that decides.
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.
age 18see links
18 years
When they are 18.
As long as you are a minor you can not decide legally where to live.
Age 18see links
Age 18see links
When they are 18.
see related link below
When they are 18.
The minimum age that the child can decide who he wants to live with is 18 years.