All I know is, if I could be a dad (at least the way most guys do it), I'd have had 20!

Oh also, some men feel entitled to women's bodies in general, and their womb is no exception. Some men will even "support" their partner's decision not to have children, then spend years trying to change her mind. They can't imagine a woman not wanting to literally give everything of herself and her body for the little heirs they feel entitled to sire but not raise.