Hormones don’t raise kids in particular gender norms, don’t carve them a place in society, don’t feed them gender-based culture 24/7. They do have a physical impact, impact on sexual development, their sex, reproductive function, temperament, but gender is a human invention.

All those differences do impact roles in society. They let women breastfeed. They give men greater physical strength. Other biological differences make women become pregnant. These will affect roles in society.

I am a proponent of paternity leave. The counter argument is always based on biological differences. So are the arguments for not having women in many roles in the armed forces.

> gender is a human invention.

That is a tautology. It is by definition.