If you're a 28 year old woman without a partner you only have a few more years of being physically optimal to give birth to a healthy child.
So the average-looking men suddenly become more interesting. They have a career going, they are stable, aren't womanizers, and won't gather too much attention from the competition.
I'm definitely average looking and I didn't get much attention in my late 20s. Only in my 30s I started getting attention from women who would formerly only go with the types of men they now avoided like the plague.
One of those guys is a good friend of mine. Great looking guy, just a great person if you're... not a woman. But he's the "bad boy" women fell for when he was in his 20s. Now he's in his 30s and still playing his old game.
Take a pick:
Option #1: An 9/10 looking 6,2ft tall guy who had over 100 sexual partners, constantly plays the seduction game just to get laid, is constantly flirted with by younger women, can't hold a conversation unless it's about sex, booze, or soccer, still goes to clubs several times a week.
Option #2: A 7/10 looking 6ft tall guy who had 4 sexual partners in his entire life (all longer-term relationships), can hold a conversation, has female friends, worked on his career instead of being in clubs 5 times a week.
Sure, there are still women who fall for him. His most recent relationships were women in their early to mid 20s. He's actually trying to settle down and find a long-term partner, but he has no clue how. The last 5 of them he fell in love with, all left him hanging just a few weeks into the relationship.
I am in my 30s and when I was on dating apps I'd suddenly get a ton of matches. Obviously also from women who are like my friend: promiscuous (no judgment here) women who, in their 20s, got pregnant and were left by the father.