As long as you are a minor you are not allowed to decide who you will live with.
It depends on the age of the child what kind of room would be appropriate for the child to sleep..play and be near the parent ( custodial or non-custodial) to monitor. If you don't have a adequate area for a child..why are you a parent.
When they are 18,
This will depend on many factors. If you already have a court order, then you will want to have it changed, in addition, it will depend on why the non-custodial parent has not contacted the child, and even the age of the child.
Age 18see links
When they no longer is a child by law, age 18.
Generally, not until the child is 18.
Not usually, but there are some cases in which you might. 1. Some states require the non-custodial parent to continue to pay child support if the child hasn't graduated high school and is still living with the custodial parent. 2. If the child is disabled, there is no cut off age for ending child support. The non-custodial parent will continue to owe child support for as long as the disabled child lives with the custodial parent.
Age 18 see link
A child can make that decision at the age of 18.
16
see link
13