Actually, that is the question. How do biological differences relate to practical issues around the social roles people perform. For nearly all of human history, woman of child bearing years were either pregnant and/or providing breast milk to infants a large % of the time. That greatly limited what they could or would be wise to do, how far and for how long they were away from "home" on a hunt, raid, etc.
They also were notably less strong in the kinds of upper body strength critical for hunting and war.
Those basic differences meant tens of thousands of years of highly differential evolutionary selection pressures on men and women related to various physical and psychological tendencies that are involved with the kinds of tasks those more definitional gender differences promoted.
For example, the skill of tracking moving objects was more critical for men than women. In contrast, if men were hunting game, then women would need to perform more of the non-meat gathering, requiring a highly sensitive sense of smell. Such selection pressures predict that males would have greater spatial skills on average, while women a stronger sense of smell. A mountain of science supports such differences. In fact, not only do many studies show that women are more sensitive to various odors,
but they have about 50% more neurons in their olfactory regions of the brain. Countless other differences in skills and tendency would be likely, and many have emprirical support, such as
women being better at discriminating different emotions in facial expressions (something critical in protecting/caring for children),
women having better recall of highly similar objects within the same category.
The need for hunting skills and need to be able to give breast milk are far less important today. However, the evoutionary impact of these pressures on countless other skills and psychological tendencies would still persist, and are still relevant to countless jobs, behaviors, hobbies, and interests. It would be miraculous if men and women didn't have biologically rooted differences that continue to be relevant to many aspects of "gender roles".
Now, none of that means that people who want to and can do things that are more associated with one gender should be prohibited or attacked for doing so. It just means that the claim that such gender associations are purely imposed by useless cultural norms is utter anti-science nonsense.
. It's about as realistic as my Dunmer shooting sparks from her hands at undead enemies in Nordic crypts. Same for knocking enemies down by shouting "Fus Ro Dah" at them. Then I wondered why a refugee from Morrowind (role play) might be skinny and perhaps malnourished.
