N=1 but in my personal experience most people don't care about loud sound levels anymore. Neither when they produce it nor when they are experiencing it. I blame two things: a) they are already deaf anyway b) I am getting grumpier and have always been more sensible to noise than others.
> ...most people don't care about loud sound levels anymore.
It's probably less this and more (at least in the US) that it's very, very, very hard to find "multi-family" housing that's not soul-crushingly substandard [0], so at some point you just give up and try to do a reasonably good job of balancing "living your damn life" with "not making so much noise as to be enormously obnoxious too often".
[0] It might be true that very few USians have ever lived in a place with actually adequate acoustic insulation... so very few folks even would think to look for it.
