Earlier quoted context omitted.
On the other hand, music has historically been a very social thing that have brought people together. The decline into a sollipsist "service" has been gradual since the dawn of recorded music, but Spotify et al are definitely making it worse than ever. My 11-year old daughter loves music but she and her friends all listen to different things, there is no music that they all know. I may have hated top40 stuff in my da…
Damn that’s scary. A world where no one has anything in common. I’m in my 30s and my friends and I reference songs from our childhood all the time. Shows and candy and all sorts of things.
In practice, though, I'm sure there's quite a bit of sharing musical tastes between friend and interest groups; it wouldn't be literally everyone listening to different things.
I would wonder does increasing consumer choice ultimately erode generational identity a bit, though. So much of the "what is a boomer/gen X/millenial" is founded in what popular culture everyone was consuming in a given decade.