That's the same thing I thought: it was the younger people who yearned for the office. Junior employees tended to do worse with WFH, especially those who were onboarding, whereas more senior folks were more comfortable working without much supervision. Younger people also don't tend to have larger homes, with dedicated, quiet office space. Younger employees pinned more of their social life on workmates than older employees who might already have established families and community ties.

Anecdotally, I know that on my team, the younger teammates were the most eager about returning to the office. I'm nearly 50 and wouldn't go back in if you held a gun to my head.