Well said...I absolutely agree with you!
Women in there 20's, being young and fertile, have their pick of males, usually the "bad boys" or "alpha males."
However, I would not consider them "sluts" they are just taking advantage of what nature gave them.
When they hit their 30's a change occurs, suddenly there is a new crop of 20 year olds for the "bad boys" to bang and the 30 year olds can't compete.
With their body clocks ticking the boring "nice guys" whom they ignored previously, start to look good.
The "nice guys" who got little if any sex before will grab onto almost any female that gives them even the tiniest amout of sex and/or attention.
Men have adapted to this through the societal trend called the "Marriage Strike."
Seems these boring, nice guys are waking up and not getting married at all.
If you didn't want the "nice guys" in your 20's, he doesn't want you in your 30's or 40's so to speak.
Interesting times we live in.