It depends upon the age of the women. By the time men generally hit their peak and on the down turn, women are just climbing or have reached their peak.
Some of the attitude about sex is socially indoctrinated into young women. For example: If a young woman, especially a teenage girl, has a high sex drive then she is considered whorish or promiscuous and therefore there is something wrong with her. Whereas a guy like that is considered to be virile and quite the Romeo.
In this case double standards not only suck, but they can be emotionally and mentally damaging.