There are so many sub-issues and side-issues in this that it is impossible to ever have agreement. The proposed Calif. law might be a good start, but obviously it will only be enforceable if someone is seen doing it in public and can be caught, or if they injure a child enough to be suspected....kids UNDER 3 sure aren't gonna know they can report it!
   Once the kids are OVER 3, all bets are off? That is silly.....
I don't think this law would solve much. Just like jaywalking laws, it would be only a way to prosecute and place blame if something bad happens....which is fine, but doesn't solve the problem.

   A careful, universal program of education, continuously repeated like drug awareness programs, might gradually get parents to change habits...but among certain....ummmmm.."demographic groups"....it will be VERY hard to explain why violence, which is all they know, never solves much.