I think they ought to simply be put to work more with physical chores, and put into athletics programs, no matter how much they complain. Fat children should have video games taken away, and should have diets restricted.  And who is going to oversee these sweeping lifestyle changes? The obese parents? Not bloody likely. Might as well tell Jewish parents to raise their kids as Baptists. If the parents were capable of proper thought and self control, they and their children wouldn't be fat in the first place. Fats have an investment in their porcine lifestyle, they're not going to change a damned thing to help keep their children from following them down the scooty-puff trail of life.