Mccartney was still selling out shows in 1990.
Beatles were late 60s, early 70s. Not my dad's generation. Beatles, Stones were that "rock noise" to him.
The only ones of his era I can recall are like Elvis, Ray Charles and Sinatra. But of those, only Elvis "rocked" so to speak and stayed relevant (even somewhat) with the younger generations.
The 70s and 80s era rock bands have a staying power that most others really don't.
KISS and the Stones (among a handful of others) still stand apart. While Journey, Styx, Foreigner and those bands are playing The Wharf and the Picadillo Pea Festival in Beaufort, KISS still does shows for 100,000-plus in Argentina and still makes the "big" tour stops like Madison Square Garden. And they sell out.
Will today's "popular" bands still be selling out major shows 35 years from now? I contend that most won't.