One of the requirements to be emancipated is that the student can support himself. It’s more common for actors and the computer whiz with money coming in for app development to get that status than the 16 year old from a poor family, who is more likely to be put into custody and a foster home if it is proven that the parents can’t or won’t take care of him. It is unlikely to happen if the child is getting the basics but not money for college, or just because he doesn’t like his parents.