Basically the key to society in general is making sure rotten women can't spoil the whole bag, but the internet makes that totally impossible unless you commit to a pastoral lifestyle and that comes with plenty of other challenges.

There may be something to that theory. Considering most of the people I still see and know IRL who are tomboys dont have social media and also consider it to be a plague.

There's another path to tomboyism; Big titties.

Girls who develop breasts early and notably larger are subjected to jealousy-fueled ostracization from female friend groups. The earlier in puberty this happens, the more pronounced the effect is.

Cue male friend groups out of necessity, and thus, the filtering in of male intersests, mannerisms, and generally just a vastly better understanding of men than most women have.

Today, these girls are also fed the same lie that they are in fact men.

Managing to be incredibly desirable and popular white everyone falls over themselves to characterise you as ostracised and a hard done by outsider is the most woman thing I can think of, though