Men and women who want to get married, do you know why couples who have been in love for so long can't get into the wedding hall? There are many reasons for this.
Marriage, I think, was formed slowly at the beginning of the patriarchal society. Because women have children, men find a reason to determine their sexual partners in order to determine which children are theirs. This reason is "marriage".
With marriage, there will be a family, and men will have a fixed woman, and the children born by this woman can be determined to be this man's under normal circumstances. In the previous matriarchal society, there should be no marriage, because children follow their mothers, men are only "stallions", and it doesn't matter who the father of the child is.
It is very simple for women to confirm their children. As long as they are born, they are their own children. Therefore, the matriarchal society does not need parent-child identification. Mothers always know their children, unless two mothers give birth at the same time, there will be the possibility of holding the wrong.
Therefore, if the children are not their own, the probability of this kind of thing happening in the matriarchal society is much lower than that in the paternal society, because the women in the paternal society have a more term than the matriarchal society: "red apricot comes out of the wall".
Since mankind entered the patriarchal society, the inequality between men and women has changed in the opposite direction to the original inequality. In the past, men were only stallions, while women were responsible for giving birth to children.
Now, according to the legal and moral regulations of men, this woman belongs to this man, and this woman can only give birth to this man, otherwise it is "red apricot out of the wall". But this man can find other women, which is called "concubine".