I would guess, for one we have a learned tendency to classify things and rank them. Libraries’ DDC comes to mind, where we tried to force an clean order on basi

I would guess, for one we have a learned tendency to classify things and rank them. Libraries’ DDC comes to mind, where we tried to force an clean order on basically the whole universe. Second would be that christian societies have a very clear cut Adam/Eve dichotomy that I think was enforced way more than other places. Having genders hanging out of the dichotomy becomes more difficult than in laxer societies.