Many women spend their twenties drunk and hooking up with random bad boy types.
Those women spend their thirties complaining that good men aren’t seeking to court them as though they were precious flowers.
DING! Or they spend their 20s in school or just traveling and having some “me time”, etc. Then they hit 30 and want a guy their age who has worked hard and who is on the way up in his career.
They might well have been desirable in their 20s but that guy now does not want them. He wants what they were 5-10 years ago. Then they get angry and bitter that now that they’re finally ready, they can’t get a good man.
And the boys they rejected, because they didn’t have much money in their twenties, are after the girls in their twenties.
Or they are living the exploratory life the girls lived in their twenties and won’t be wanting marriage firbat least ten years.