Youngsters these days.

When I was 45, I came to realize that the most annoying thing in the world is a 30 year old man...the 2nd most annoying thing is a 25 yr old man. It's true. As creative director for a creative agency, I also know these young people are fearsome and really wonderful to work with. 

It may not seem so, but I think the OP actually imprinted a lot on his grandson.  Young people listen to us older folks quite a bit.  It's just not so apparent at the moment...but it creeps in later. 

I'm fairly young (38) and I love my LP collection. My father turned me onto vinyl as a kid and in the last few years he has got us both back into playing and collecting. At this point I have a considerable amount of money wrapped up in my turntable and my record collection.

That said,  I also have a streamer and a nice DAC and I have subscriptions to Tidal and Qobuz. I recently got my father (65) into streaming as well after months of attempting to talk him into it. He initially had all the same reasons mentioned by so many others from his generation as to why he didn't need a streaming service. After one weekend of playing his his new bluesound node 2I and setting up trials for Qobuz and Tidal guess what? He absolutley loves it.

It is not about replacing our media collections or even stopping the purchase of new media. It's a way to discover new music and artists. It's a way to fill in the gaps in our collections. It is a way to find the next album you want to buy or hear an album you had forgotten about until something made it pop back up again.

My father and I live several states apart and we can send links to eachother recommending new music or sharing play lists. Dismissing streaming platforms entirely is just like my my grandfather telling my father his rock music in the 70s was just noise. But you guys are probably right, it doesn't have any value, just the youth of today embracing a throw-away culture...

Don't get me wrong: I do CDs, LPs, Qobuz, DLNA though my DS DAC, you name it. I embrace new tech without abandoning (the great) old tech...

I mostly use Walkman. New one. Digital. All the music fits on microSD card (1TB).

I (relatively) recently bought a SACD/CD player. I have not put more than 20 discs in it. All the discs are uploaded (dowwnloaded?) to a hard drive for larger system. As larry described above, convenience is hard to beat. CDs are not even in the same city anymore, but I am not donating them, just in case.

Now, streaming from the Internet is a little scary. You know, all these new fads, like Internet, are unreliable. That is why I like to have my own. I buy a record or two a few times a year. Listen to it once or twice.

The only thing that seems appropriate to be played on physical media (discs) is Requiem. For physical media.

I prefer my 4000 or so lp's, but my son streams, exclusively.  I bought him great earbuds and a portable dac for his computer, he's good. he told me a "dad joke": 
"My neighbors listen to good music.  Whether they want to or not."