Why do we stop listening to new music as we get older?

Speak for yourself.

I have never stopped listening to new music. Beatles, Brian Eno, Led Zeppelin, Bowie, Kraftwerk, Weather Report. Were my first and second wave. At the time there were actually new inventions such as stereo recording, synthesizers, etc

Now that streaming has come around, I can go back and listen to albums I kind of remember or never had a chance to listen.

Then there is the new and other stuff I never knew up.

When i got my system set up properly, it all seemed like new music. You could tell the intention of the artist, engineer or producer. I didn’t know that was what the song really sounded like. .This is a great retirement activity I must say..

Some very interesting perspectives here. For myself, while I do wish I could listen to more  "new" or at least unfamiliar music, it's really a matter of time. I'm older but still work full time in my own business & enjoy listening & relaxing to music that moves me but often I don't have the time and / or energy to seek out new stuff.

Additionally, I only recently got into streaming w/ a really nice set up w/ a good tube amp & good speakers set up well so I'm hearing  things & enjoying music I thought I knew well even more than ever before. Hopefully when I retire this will change & I can explore lots of other great music  know is out there. 

I use a download service Jamendo.  It allows free downloads no charge from artists who are trying to get exposure.  You need to sign up for it but I have found lots of good music (and bad) there.  All genres

@flyfish77 +1 "Discovering new music is far more important to me than the minutia of tweaking the sound quality of the music systems in my home.  Roon's ability to play or suggest new music to me has enhanced my music enjoyment far more than any gear upgrades that I have made.  To me, it is all about the music.."

Bravo.