The bottom line of this discussion is usually “and that’s why women should marry while at their peak before the age of 30”.

Okay and… then what? After someone gets married at 25, they’re still going to age.

As someone who’s in her early 20s, of the reasons I would never go for a much older guy is that I’d be aware that a big reason he’s interested in me is because of my age. So why would I commit to someone if they only primarily value me for something temporary? I’m not going to look the same in 10, 15 years and also do a lot of maturing/career progression in that time. That’s not going to bode well for someone who chose me for my youth and I’d expect to get swapped out like a tired pair of shoes.

Whether or not a woman gets married during her ‘peak’ she’s going to get older regardless. So I don’t really see the point in caring so much about this “wall”. If anything it seems like once you’re in your 30s and dating men your age, you know they’re not after you for solely superficial factors and the hopes you’ll be impressionable and not have a backbone.

And if we’re talking about longevity of marriage and age:

Statistically, people who marry in their teens/early 20s are much more likely to get divorced than people who marry in their 30s.

Almost half of divorces happen in the first 10 years of marriage, and the highest divorce rates are among women 25-29 and men 25-29 and 30-34 (fluctuates depending on the year).

So telling people to marry young is objectively just bad advice.

Age gaps are also shown the impact the likelihood of divorce.

More than 1 year - 3% increase

More than 5 years - 18% increase

10 years - 39%

20 years - 95%