Optimal strategy for men is to procreate as many children as possible. Beauty is a rough proxy for health. In a prehistoric setting, young beautiful women shoul

Optimal strategy for men is to procreate as many children as possible. Beauty is a rough proxy for health. In a prehistoric setting, young beautiful women should procreate more healthy children than older uglier ones. Since women cannot just procreate that many babies, their optimal strategy is to nurture and care for the ones they have, with as much help from the father as possible. In a prehistoric setting, wealthier men should make better providers and taller men should make better protectors. It is all evolution.