A sizeable portion, maybe, but certainly not all (and probably not even most). Do you think crocheting, knitting, bingo, and dancing are honestly good things to put people to do? Let alone pay them for?
I know lots of employed people who spend their days “staring out the window losing their mind”. It seems we have over optimized in the wrong direction (towards work and away from leisure).
It raises a fundamental question about the government's role and it's goals. We tend focus on maximizing productivity and other countries focus more on maximizing health/happiness. Even the way Americans talk about education is through the lenses of creating more productive workers as opposed to something like creating more enriched citizens.
You also ignored my first and more explained upon example, volunteering. Is there a reason for that?