With a court order, any age. Without, 18.
When the child is 18.
13
Eighteen.
You have to be 18.
Generally, not until the child is 18.
The legal age is 14. (:
You have to be 18 unless the parents agree to it.
Yes.
Change visitation
When they move out of the custodial parent's home see links
age 21 see link
Children who are at an age of understanding, and able to make informed decisions for themselves (to a point) can choose to reduce or stop visitation. If possible, the custodial parent can petition the court to modify the custody and visitation with the request of the teenager, and the Judge may want to ask the teen some questions regarding their choice.