Yep its a pity that generally their sex drive decreases massively when the ladies get much older, having had their kids. I wonder though if we may be partly to blame, as I think that older men dont fancy their partners as much as the did earlier on and therefore perhaps no longer create the conditions which make their ladies horny ?
Women I think are at their horniest when having children is in front of them, not so much when they are finished having their family.