I think it depends on the culture of the place, it can vary, although I do believe that the majority of men, regardless of age, would prefer a 25-year-old woman to a 45-year-old. Very different from if you ask a woman, generally women like older men, if you ask a 25-year-old woman, she would most likely prefer someone 30 or older, and a 25-year-old man would most likely prefer a 20-year-old woman. I am referring to the generality, not the totality, there are definitely exceptions.

I believe OP it’s asking about “The Wall”, In my culture and according to my experience, I have noticed that generally it is more difficult for 35-year-old women who are alone to find a partner than for 35-year-old men who are alone. I think it is due to the traditional role of men and women. Honestly, I am not very sure what will happen with the new generations, but I think that artificial intelligence brides will be a success.