They aren't, but at the same time the world sure is feeling more lonely. Old friends will move on, but I did notive that Meetups never really recovered in my area post pandemic (and they weren't in great shape in 2017-9 to begin with). What does one do when it feels like there's nowhere to make friends?
>helped many of us to notice our time is finite and we should better spend it doing what we like and want.
It's not necessarily volunatry for everyone. Everything's more expensive and not everyone's gotten wages that keep up with inflation. Or they got laid off and are recovering from that. It just so happens the cheapest entertainment these days is in fact in your own house.