[everdev]

Knowing the common predispositions of genders is useful if you need to make an educated guess about the expected behavior of a random person.

Sometimes the problem lies in trying to raise boys or girls to fit these "expected predispositions". Or judging someone who is "outside their gender norm".

So, yes if I pick a random boy and girl out of a crowd, I would expect differences and could make reasonable guesses about those differences.

So, it's not bad if you know these common gender differences as long as you are able to quickly discard them when you're getting to know someone at a deeper level than their gender.