Well.... as a parent and a BB lurker... I can truthfully say that it is best to just let the kids do whatever they like... pretty much "freerange childcare" .... That's allways best.. I let my kids do whatever they felt like doing but I did make one rule....
I told them that if they ever carpeted their garage I would hunt them down and kill them with my bare hands... That's all a caring parent can do for a child really..
lazs