I'm exactly the same as you (Bit younger 48), When our singer (52) declared 'I don't want to play any new music' I was mentally walking out of the band. To have limitations imposed on you is a bad pill to take.
In my book a good song is a good song regardless of when it was recorded. Since I've got Deezer if anything my musical tastes are more modern than 20 years ago, and I love it.