How come girls in their 20s wouldn't want to be 40 year old men but 20 year old men would love 40 year old women?

Ghibli

It seems like girls in their 20s would want a man in his 40s unless if he's rich or famous.

Guys in their 20s on the other hand wouldn't mind being with a woman in her 40s in general and don't get creep out by it. Why are male and female wired different?

How come girls in their 20s wouldn't want to be 40 year old men but 20 year old men would love 40 year old women?
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