Women don't hit the wall at 30 or even at 40.

I know 40 yo single moms who found stepdads to adopt their kids pretty easily. These women weren't even very attractive, they were pretty mid.

Women can easily find a man at 40 if they play their cards right and are not delusional.

Because of the normalization of Botox and plastic surgery you see 40 yos who look 30 at most....

I feel that 50 is the age where it feels that men of that age range start having more options than their female counterparts. Which is probably related to menopause. It's not just about fertility. Menopause affects women's sexuality, psychology and even their body.