An ethic isn’t a fact you can look up. It’s a way of thinking. - Theodore Sturgeon

No man can rob successfully over a period of years without pleasing the people he robs.

Science fiction, outside of poetry, is the only literary field which has no limits, no parameters whatsoever. You can go not only into the future, but into that wonderful place called "other", which is simply another universe, another planet, another species.

So it is easily seen that the sexual insignes are nothing in themselves, for any of them, in another time and place, might belong to both sexes, the other sex, or neither. In other words, a skirt does not make the social entity, woman. It takes a skirt plus a social attitude to do it.
But all through history, in virtually every culture and country, there has indeed been a “woman’s province” and a “man’s province,” and in most cases the differences between them have been exploited to fantastic, sometimes sickening extremes.
Why?