Can a child voluntarily go into foster care?

Question by yeah: Can a child voluntarily go into foster care?
If a child is being emotionally abused in the home, can they leave into foster care by choice? Do the parents have to sign them over? Can they only leave if there is physical abuse? If the child does enter foster care, and someone chooses to permanatly adopt them, do the parents have to sign and approve of the adopters? Are there age limits on any of these things?

I know someone will say “define emotional abuse”.. so here’s what the situation is; The child is 16. Restricted from all activity outside of the home. School is the only place they are allowed to go. They are banned from friends. The parents have a myspace account that SAYS they are the child, and use it to talk to their friends and see what the kid has been doing. No extras (computer, phone, etc). Punished if grades fall below an A. Called fat, stupid, told that they’ll be alone forever.. etc. Yelled at often. Does majority of household chores. Oldest of two, but the youngest is treated well. However, the child has had no
more physical abuse than an occasional hair pulling or slap to the face. All emotional.

No, I am not the child this pertains to. Someone asked me this today, and I assume they were “hypothetically” talking about themselves. I’d really like to help them out.. No hate comments. No useless comments just for the two points. Ten points to the most helpful person. Ask if you need more detail. Thanks in advance.
Wow, totally forgot to mention I live in Michigan. Sorry about that.

You’ve all been truely helpful, this girl has been in this situation for years and I would really like to help her put an end to it before things go too far.

Best answer:

Answer by *~ThugLuva~*
it doesnt have to be physical. they need to call cps and tell them whats going on. no one should ever have to be treated like that. it will scar them emotionally for life and they will have a terrible self esteem.

Know better? Leave your own answer in the comments!