The govenment ought to be able to step in when it is a minor himself (or herself) who is being shunned by their own family members (esp. parents).
The govenment doesn't have to dictate what they can and can't do; they should just have the legal right to take their kids away from them and mandate that they go to parenting classes.
Outside of the legal stuff, I think people ought to work very hard to make the public aware of what the potential repercussions are of joining the WTS, or sometimes of even 'looking into it'.
Many, many people would just steer clear from the beginning if the WTS had less power to lure them in and - ooops - just forgot to tell them about that part.