I'm pretty sure that I've mentioned this, in decades past, but...
There was a time, not so long ago, when roller skating was popular; so popular the roller rinks were established in every major, then minor, town and city, across much of the Western World. It had become an enormous industry, with its own galaxies of stars, local, national and international competitions. Times passes, and the roller rinks lose their popularity in favour of the novelty of Cinema, heightened when 'talkies' came about. This, too, had its day; many cinemas became Bingo halls, then carpet or furniture warehouse shops; there was a short period when slot-racing clubs sprang up, had their moment of glory, then faded away. Pubs and bars have evolved over the decades, too, with the piano in the corner, then pool tables, juke-boxes, 'live' music, karaoke... each making a bid for custom. It all changes, from generation to generation, and will continue to do so. What will the next 'fashion' be..? When will it come..? How long can the 'old' ways continue..? Some will not die out so easily (there are still folk hunting with kestrels for pleasure, and roller skates can still be bought...), but these, and all the others, become progressively more and more 'niche', and hold little interest for modern commercially-motivated organisations. It's nothing to fear, and is perfectly normal; each generation has its day, then its twilight. For rock'n'roll, it's getting pretty dark.