There also are cultural norms and/or enforcement around stuff like loud cars or trucks. I visited Asian cities recently and did not notice offensive noise. No crazy/rowdy yelling people, quiet buses.
I slept in quieter neighborhoods but they were still dense.
I do actually imagine a rough transition period for some in denser housing in places like America and Australia. I don't think we quite have the outward thoughtfulness as a societal norm, that makes it work in some cultures.
Need to mention the punishments and fines in Germany for making noise. Switzerland has even more strict rules (and very angry neighbours, I assume).