If a 17 year old is deemed to be independent, they may be able to move out of home without their parents' permission. To be deemed independent, a 17 year old must be able to prove that they are financially self-sufficient and able to take care of themselves. This means they must have a job or other source of income, and they must be able to find and afford a place to live.
In some cases, a 17 year old may also be able to move out of home if they are escaping a situation of abuse or neglect. If a 17 year old is in danger, they may be able to seek help from the police or a child protection agency.
If a 17 year old is not deemed to be independent, and they do not have a valid reason for leaving home, then their parents can legally stop them from moving out. However, it is important to note that parents cannot use force or coercion to keep their child home. If they try to do this, they could face criminal charges.