Rihanna put on a great show at the SB! Who would you rather see, 80 year old Bob Dylan singing Blowing in the Wind? I am a big Dylan fan and I still wouldn't want to see that. It's 2023! Not the 60's or 70's.
Anyway, I have two nieces under 30 that are both into records, I was in a record store last week and saw a 20 year old, they are far and few between, but they exist. As for records peaking, I would say they are leveling off, the classics will always be worth something. Some of the new stuff will become classics (Taylor Swift for one) and others will be in the cut-out bin.