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

At some point you make peace with your inner cranky old man.

https://www.youtube.com/watch?v=KUgVgkrcqhk

I know I'll get beaten up for this, but J.S. Bach may be my least favorite among the accepted pantheon of Top Classical Composers. Too many of J.S.'s pieces feel mechanical. More busy than inspired. Cranked out on deadline for a fee. To be sure, part of my problem with Papa Bach may be due to the fact I'm less of a fan of High Baroque than of the earlier and later eras. But still...

Actually, we don’t, or at least we don’t have to stop. In part because of my stereo, and in part because I don’t particularly like most of what is defined as popular music currently, I listen mostly to jazz. I’m a card-carrying boomer so I already own all the classic rock I’m ever going to listen to over and over and over again, and while I realllllllly enjoy it, the “new”, and the unknown still interests me and I find that in jazz. I have always dipped a toe into jazz, but within the last 5-7 years I’ve really gone much deeper. I own all the classics and enjoy the usual suspects, but I’ve also discovered some incredibly cool new artists along the way. 
It doesn’t keep me young, but it certainly keeps my brain firing. 

OP here.

I want to say that've been following this thread with great interest. I've enjoyed reading almost all of the posts especially those that present their own ideas on why the phenomenon seems to occur and how to go about getting past it. 

BTW by no means did I mean to imply that the 'no new music' thing is ubiquitous. Everyone is an individual and thinks and reacts differently to the world around us.

But best of all I've gotten some new artists to check out! So thank you all again.

Happy listening... 

I'm 64 and got very interested in music which was called punk or new wave. I played in some bands. I love indie rock/dream pop etc. I am constantly on the lookout for new music and sometimes it is older stuff I had never heard of before. 

I've almost never listened to music which most people like and that is true going back to the mid-1970s. So far this year I've found releases by Alex G, Nova Twins, Soccer Mommy, Jadu Heart, older stuff by the Throwing Muses, Beach House and others. I really enjoy listening to Alvvays (3 albums so far), Pip Blom, MIYNT and others. 

I do think that listening to new types of music requires your brain to adapt (actually changing the brain waves) and, nowadays, if a song doesn't hook you within a couple of bars, people ignore it. I do listen to and like almost all genres including classical, jazz (listening to Dave Brubreck right now), classic rock, rap, singer songwriter, bluegrass, etc.