Men are fertile until the day they die. Women fertility start declining around 30 years old, they were born with a finite number of eggs. Every decade after 30 will pose more risk for women to conceive and support children.
I don't think men are the ones who has to worry about finding a partner. Most women are driven by urges to have children and have safety. The liberals and feminists have put some of these impressionable activist women's life prospects into a corner by telling them they should dye their hair purple, write off men, and be a strong independent women.
When these brainwashed women hit their 30's and 40's, they're going to realize their skin will begin to wrinkle, things will begin sagging, and their body begin losing its physical appeal. They will wake up and red pill so fast. It's all fun and games when you have your parents to support you in your 20's. When you hit 30 and realize you need a stable house, a loving family, and safety, it's already too late for these activist females. They will have wasted the most productive time in their life and they will be filled with regrets.