I've said before both quantity and quality of men approaching me improved when I entered late 20s, but I was thinking "ok, I may be the exception" until I saw my friends 30-50 have similar experience. The most illustrative example I have encountered is a widow I know (45ish years old with 2 kids) who had a boob job her younger bf paid for.

What I think:

Most people (including men) seem to be annoyed with younger people more than they seem attracted to them.

Of course there are hot barely legal people. I'm a woman, I have eyes myself and when I see a younger, beautiful man I will naturally think "damn, he's hot". But put me in a room with him for 2 minutes and just talking to him will make me want to gouge my eyes out. They're void, clingy, think good romantic/sex life is the basis of a happy life.

Yes, there are exceptions and young people that aren't as annoying, but they're that - exceptions. I dated a guy that did some modelling, 5 years younger than me and I ultimately broke up with him because he lacked layers and life experience. "Soul", if you will.

The question of kids, a.k.a. "I want fertile women" - from what I've noticed, kids just aren't important to most men as regular sex is. If kids happen, they happen. That seems to be the attitude of most men.

I've never actually seen men or women saying they regret not having kids. And I've met lots of people regretting the fact they have kids.

Of course, there are exceptions to this as well, but childfree people are stigmatized so I assume not many men or women will admit they don't want kids.