I go to a lovely playgroup but there are 4 or 5 mothers with 3 yr old boys who seem incapable of intervention or telling their boys off. However much the boys hit other kids, or push them or generally hurt them these women respond with lame sort of shruggy helplessness and a weak sort of whiney "Oh DAHling please don't do that".
And it's so weakly done, and you can see the child feels no consequence has occurred. Sometimes said Bint will kneel down and talk quietly with mean offspring during which child appears to take nothing in.
These mothers are usually very middle class and almost find this behaviour a bit adorable. Certainly they don't seem to have any methodology of discipline. I find it so weird. They have to learn how to behave don't they?