Maybe it's time for a POV from someone with Very bratty kids in the family. I have a half-sister who is older than me, and 2 step-sisters who are 4 and 3 years old. My older sister was controllable and minded but she did get into alot of trouble when left alone. I was the perfect child
My youngest sister is a little angel and doesn't do anything bad until you turn your head. The 4 year old however is the Devil. She is uncontrollable, hateful, destructive, and dangerous. I don't think it's right to blame the parents because they really do everything they can to try to keep the kid under control. You can give her a whipping every time she did something but about that would equal about 900 whippings an hours which is useless so why keep doing it. I understand the problems people have with kids, but remember the problem child is giving the parents a much harder time than they will ever give you in the 20 minutes you set beside them in Mcdonalds.
Some kids are just uncontrollable. I wonder if kids in the 1950's and earlier had ADHD... never heard of them.. but then again there wouldn't be saying like "a child should be seen, not heard" if there wasn't a problem child among them.