Earlier quoted context omitted.
Well, one reason the ancient Greeks largely prevented women from leaving the home was anxiety about false paternity. A woman's maternity is never in doubt but a man's paternity can be.
> A woman's maternity is never in doubt but a man's paternity can be. That's not always true. See the Lydia Fairchild case [1], and the earlier Karen Keegan case [2]. These are both cases where women were told, wrongly, based on genetic testing, that they were not the mothers of their children. Fairchild was pregnant when the controversy over her maternity arose, and the court overseeing that controversy ordered a wi…
Well, OK, excepting a very rare circumstance ancient people would not have understood, depending on your definition of "maternity".