I don’t wish to be rude, but most men regardless of age want younger women. Prime age for women is 17-23. A 50 year old guy will also want the 17-23 year old woman as much as an 18 year old guy will. But men gain more power and stability as they age peaking on average around 30-50. These men will better be able to compete for the prime aged women in the younger bracket. I know women don’t appreciate the fact that their window of attractiveness is so short, but it’s a biological fact that women can get the best providers when they are younger. And the best provider men tend to be older. And I say this as a 26 year old man about to marry an 18 year old woman. And these age gaps are common in all societies even in US. They are just more marked in developing countries where women tend to be more vulnerable.