Why are there occupational differences between men and women?

Men and women have different division of labor since ancient times. Men are in charge of hunting and women are in charge of housework. It can be seen that the higher you go, the less likely you are to be a woman. Women have to face the problems of having children and taking care of them. The society generally attributed these problems to women's management, and women's own physiological structure also had an impact, which is also the reason why it is difficult for women to get to the top of the workplace. Without marriage, children and education, how many women can balance work and life?