Girls are often encouraged to be athletic, assertive or like “tomboys,” while boys face no socially acceptable equivalent in the other direction. There is no benign male version of tomboy. The closest is “sissy,” not typically considered a compliment.
https://theconversation.com/gender-conformity-starts-young-and-boys-and-girls-fall-in-line-in-different-ways-275996
Gender conformity starts young – and boys and girls fall in line in different ways

Children learn what it means to be a woman or a man early on. How they respond to threats to how well they conform to gender stereotypes changes with age.

The Conversation
@amydiehl @CCochard Well, in a way that's depressing to see we build these foundation of sexism so early.
@Sobex @amydiehl I think what's noticeable is that there are "women in science" events, but no "men in nursing/education" events
@CCochard @amydiehl Though men in the medical profession or education surprisingly tend to end up at the top of the pyramid / to increase going up the pyramid.