Are Two Year Old Boys Hyperaggressive?

Two year olds are by far the most aggressive bunch. But almost all of them are socialized into civilized behavior by the time they're four. So if your child is acceptable as a playmate by the age of three, you'd better have it together by then. If otherwise they get alienated and isolated, they don't make friends, and then they never recover from that. It's men in large part, that do that. The evidence among mammals is the use of rough and tumbled play to socialize and civilize their offspring. Where do you get aggressive tenagers? What sort of families produce aggressive tenagers?"