>Or if they're still a kid, they can have their privileges temporarily revoked.

Since people are already talking about using the law instead of parenting this needs clarification. Are the parents the one that would revoke their privileges or the government?

The parents. They're the ones who configure the parental controls. e.g. if their 15-year old gets caught sharing his device with their 7-year old, they can temporarily give him 7-year old permissions as punishment.