Not sure the relevance here but I'll bite. I've coached and reffed both girls and boys 8-13 (reffed up to 15). And still follow the club circuits closely because my son is there at age 15 and I have former players (mostly girls) who play at very high levels. I also think the girls are tougher.
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They take a brutal collision and pop back up. The boys roll around for 10 minutes. Part of it is a "game culture" thing where the boys think they're expected to sell everything and treat a tiny elbow as if they were shot. I think the girls are also nastier. Ponytail pulling is something I had to card young girls for all the time. The boys push and shove but the girls can be really, really aggressive.
It's all a generalization as there are plenty of guys who are absolutely tough and nails and plenty of girls who will lay and cry. As I said, I think it's more to do with the culture of the sports; you watch men and selling fouls is an art. I played my whole life and think that's some p***y shit. The women don't do it hardly at all. They bounce right back, or don't even go down. Accordingly, the boys and girls act like what they see top tier players modeling.