Yes, it's absolutely correct. Young women aren't taught any morals these days, and so youth is about "exploring your options" (aka fucking anything attractive, with short-term value) and when you grow up enough that you start worrying about "hitting the wall" then you start looking for a guy with long-term value (wealth, stability, education).
If your focus is fucking, you go for the cock carousel (and our society encourages that in modern times). If your focus is having children, you want a beta provider. A women enter their 30s, they realize that time to have children is becoming short, and so their interest switches from short-term pleasure to good long-term value.
It's natural and makes perfect sense. This is why traditional cultures usually make some effort to bridal feminine lust when they are young, and discourage promiscuity. Women are actually more lustful than men. Society needs to go back to traditional sexual morals and traditional marriage.