Its not smart as a women to build a life with a man when his attraction to you wanes with every year that passes. Men care a lot about physical attraction within relationships - yet the statistic's consistently point to them being most attracted to 20yr old's. Men may brush this off for the sake of their image, but there’s a big physical difference between a 20-year-old and his wife who is 40 and has birthed two babies.

A lot of men still stay with their partners who are aging, yet a lot of men don’t have a choice. It’s not like 20-year-olds will be interested in them anyway. However, this still doesn’t negate how this negatively affects the aging partner. Men often do not treat partners they aren’t that attracted to well. It often shows up in zero effort in the relationship and porn addictions, paying young prostitutes for sex, flings with much younger staff in the workplace etc. This generally leads to women filing for divorce.

If men’s peak attraction is to women aged 18–24, that represents only about 10% of a woman’s adult lifespan. Remember this next time you hear men complain about how high women’s standards are in dating lol.

Evidence:

"Men, both young and old, usually report to be sexually interested in women in their late teens to late 20s."

https://www.sciencedirect.com/science/article/abs/pii/S1090513816000040 

"Men-regardless of their age-have a preference for women in their 20s."

https://pubmed.ncbi.nlm.nih.gov/28127998/

"Whereas men increasingly prefer younger women as they age, women’s age preferences become increasingly diverse."

https://www.researchgate.net/publication/283454064_The_gendered_dynamics_of_age_preferences_-_Empirical_evidence_from_online_dating

Men of all ages report being attracted to young, fertile women. And when they had the choice, they chose younger brides.

https://psycnet.apa.org/record/2016-60209-004

"Older female faces received lower ratings from male perceivers than female perceivers."

https://www.sciencedirect.com/science/article/pii/S0001691821001359

"For prostitutes in the late teens to early 20s, the price of sex was similar; for prostitutes in the early 20s to early 30s, the price of sex rapidly decreased and then stabilized. The value of peak age was substantial: the price attached to sex with prostitutes of peak age was more than twice that for prostitutes in their late 30s."

https://www.sciencedirect.com/science/article/abs/pii/S1090513816000040