Once you are 18 you are no longer considered a child for purposes of living with your parents and are free to move out. Of course if you don't live with them, they have no duty of support unless a court orders it. Therefore, you need to think about whether you want to just move out without support or go to CPS in which case as long as you are still in school, you can live in a foster home and be supported. You are free to take your personal belongings with you in either case (clothes, books etc.) but if you can't take the cat, they are free to do what they want with it. You may want to take it and give it to a friend if you're worried they'll harm it. There are agencies that assist homeless and endangered youths. It would be worth talking to then before you move or in any way jeopardize having economic support.
Answered on Dec 14th, 2015 at 5:21 PM