I was getting bored with music a while back, so I did an experiment: I limited the music on my phone to nothing older than five years. To do this I had to remove hundreds of albums.
At first there wasn't much left, so I went looking... for nothing released more than five years ago.
I found quite a bit of new stuff.
Eventually I re-added old stuff I loved, but my musical repertoire had broadened quite a bit.
Part of the problem today is that the amount of signal around us has increased so much that it's overwhelming, and people haven't yet learned that it's okay to tune out a significantly larger amount of chatter than what they had to tune out in previous eras. It feels like ignorance, or being "out of the loop," but it's essential.
I plan on repeating the music experiment regularly. I should probably purge some of my "feeds" too.