I think the fact that "elderly people" listen to it is proof that it's still enjoyable to many.
Elderly people were definitely not around when these pieces came out, in the
17th and 18th centuries. My overall conclusion is that the "elderly" aspect is a stereotype - but it arises from the fact that a significant amount of people out of our population, maybe with stereotypical "old" characteristics, still listen to classical music.
Edit-
P.S. why do I keep replying to these threads asking "is X still considered music/relevant/enjoyable?"
I should stop looking for ways to incense myself.