Tough to call flu… seems okay with me what you told her. My boys get pretty rough with each other. However there is plenty of “I am not your friend.” or “I am not talking to him” between the two of them so that particular stuff is not confined to girls.
We have found ATA martial arts to be fantastic. Not as much for the karate as for the group dynamic. The kids have alot of fun there. For the little ones it is much more about just learning concepts rather then martial arts. They play a little dodge ball, run around, and learn different keywords each month like confidence, respect, and other like concepts as well. They also focus on stranger danger which is great.
Lots of little ones, boys and girls in the classes. We go to the one in Poway which has a great instructor but most of them probably do.