I'm not in the US, but can only think of one person in my rough age and social circle that is renting (and that was because he split with a partner and she bought his share of their house). Fairly middle class cohort, mix of public and private schooling. Average house price here is about $1m, though most would have bought earlier and cheaper.

Anyone younger and buying now would be up against it. I think housing affordability is one of the biggest issues we have.