Why do you often say "male left and female right"?

It is a social habit to say that men are left and women are right, but there is no scientific basis. In modern society, the left and right habits of men and women are influenced by personal habits and environment, so there is no need to label men and women left and right. Although there may be some ideas about the left and right of men and women in some cultures and traditions, it does not mean that all men and women should act according to these ideas. In short, gender and habits are not necessarily related, and everyone should respect their own choices and behavior habits.