I am envious of your luck, growing up in the Bay Area in that era!
You are no doubt correct about each generation tending to focus upon whatever music they happened to grow up with.
I didn’t see that K. Burns Country series. I will look for it.
I don’t actually know much about Bluegrass but have been exploring what I simply call "new acoustic music" that often includes Bluegrass influences for some time. I’m happy to PM you with some recommendations if you are interested. There is much to explore in this territory where various genres overlap/intermix and there are some very fine players/singers who’ve found a home there.
FWIW, Billy Strings doesn't really grab me, either. He's a fine player but I simply don't find his material very engaging. Same goes for Molly Tuttle.

