I think this is probably right. My four-year-older brother heavily influenced 11-year-old me to discover Jethro Tull and Alice Cooper and Cream, none of which I would have discovered on my own.
I am of the impression that there are a lot of kids, meaning millennials and Gen Z, who like certain kinds of classic rock because their parents would play it. When I say “a lot” I don’t mean the majority, of course, but a certainly a far higher percentage of them like that than kids of my generation who liked big band swing music, which was basically zero. I would guess probably because classic rock sounds way closer in basic style to today’s pop music than swing ever did or could to 70s pop music.