I think similarly. I am wondering how they differentiate this specific extreme behaviour moving "socially," to other subtle behaviours which are copied and mir

I think similarly. I am wondering how they differentiate this specific extreme behaviour moving "socially," to other subtle behaviours which are copied and mirrored within small tight knit social groups - especially kids / teenagers? I found the 9:1 ratio of girls to boys intriguing, given the same or very similar mechanism might been a huge benefit to females in past ages where they might be married into a strange culture.