This is probably true. The other thing I have observed, is that single people are far less likely to pass their genes along than married people. Mediocre marrie

This is probably true. The other thing I have observed, is that single people are far less likely to pass their genes along than married people. Mediocre married/paired people tend to reproduce more than exceptional single people. This is visible in any coastal city. The other thing I have observed from my mostly single, high-income, condo-renting, restaurant-frequenting neighbours is that they typically have very hedonistic lifestyles. A dog that is walked by someone, an apartment that is cleaned by someone, but no children. The reality is that there are probably many people through history who have had rich lives of contribution to society and personal enjoyment. But they are not around to tell the tales of their life. We were all raised by a parent or two, who chose the opposite path. One is not better than the other, but in many ways they are mutually exclusive and seek different goals. The key thing for the current generation to remember is we can have anything we want AND NOT everything we want. And hopefully people have both options.