I have a theory. Don't get mad. I'm a feminist. Ok, now that's out of the way. I theorize (like other anthropologists) that ancient peoples did not understand the connection between mating and pregnancy until they began domesticating dogs, because the human gestation period is too long for a correlation to be made, but a dogs is not. So in our natural state, before we learn about "paternity", this is how things operated: Women are known to become pregnant, how and why this happens are theorized on and most of them are wrong, regardless women are seen as a somewhat mystical being that brought life. What then, was the purpose of men? I believe this logically follows, a man back then was not equal to a woman, because he could not bring life, at best, he could serve the woman to gain her favor (abuse could and would occur but it would not occur within a patriarchal society with patriarchal customs, and so I do believe any man known to have harmed a lifegiver OF HIS OWN ACCORD would be punished by the whole tribe. So what then was the purpose of men?? Men were the enforcer class of the women who could best entice them, best mother them, best instill in them instincts to protect her. Men were originally supposed to be the enforcement class for the most evolutionarily desirable women. Theory. Please do not get angry at me, disagree respectfully if you must.