See related question, but you do not want to complain to family services, as the child will simply be put into foster care, than returned to the custodial parent. In less than 15% of the cases do they give the child to the other parent. The other parent will need to collect evidence and file a custody challenge. The child has the right to an opinion, but not to choose.
No, see link
When they are 18,
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.
nosee links
The child doesn't really have that choice. If the child has a lawyer acting as his or her advocate in custody proceedings, an argument can be made for the child's interests at that point. Otherwise, the parents must agree as a part of their custodial arrangement.
No there is no need for the child to go to Texas.
no see links
No. The court will decide.
You need parental consent to move until you are 18.
Technically, if a 16-year-old is with a noncustodial parent without the custodial parent's permission, it could still be considered running away. However, legal definitions may vary depending on the specific circumstances and jurisdiction. It's advisable to contact local law enforcement or a legal professional for guidance on how to address this situation.
Maybe, if the absent parent does not share custody in any manner and there is not a visitation order in place, a custodial parent can take whatever action he or she chooses in regards to a minor child. However, courts do not look favorably upon any parent who does not allow the other parent to have a relationship with his or her minor child/children unless there is substantiated reasons (child abuse, endangerment, etc.) for the action. A parent who is being denied access to his or her child/children can file suit for visitation and/or custodial rights if they so choose.
A child can not do this so you have to be 18.