And men are shallow too. We just line up for sex with pretty women, but don't try to get money from average women.
It goes back to biology: women want good genes from one guy, and money to raise the kids. Guys want to spread their genes. But if a guy thinks he successfully impregnated the best woman he can get, he will do everything he can to make sure that offspring makes it to adulthood.
If a woman thinks the father is ugly, she will not love the kid as much, and may want to abort it. There are studies showing that mothers are not as nice to their infants if they don't think they are cute. Why invest energy in offspring that don't have the genes to last generations? How much a parent loves their kids is proportional in part to if they think it is theirs, and how much their like their partner. And I've seen this first hand while watching mothers with their kids.
It goes back to biology: women want good genes from one guy, and money to raise the kids. Guys want to spread their genes. But if a guy thinks he successfully impregnated the best woman he can get, he will do everything he can to make sure that offspring makes it to adulthood.
If a woman thinks the father is ugly, she will not love the kid as much, and may want to abort it. There are studies showing that mothers are not as nice to their infants if they don't think they are cute. Why invest energy in offspring that don't have the genes to last generations? How much a parent loves their kids is proportional in part to if they think it is theirs, and how much their like their partner. And I've seen this first hand while watching mothers with their kids.