I grew up listening to the music of the artists you mentioned, from TV and radio. And many others
that my dad had the records for. I still like many of those artists and yet, I don't
buy their music. I will occasionally, tune in an 'oldies' radio station and they will play
some of the artists.
As to the current last two generations, they weren't/haven't been exposed to that
earlier generation or their music idols. If some are into easy listening music, then
those earlier artists would likely appeal to them also. But it takes famialiarization to
get aquainted with anything new to us. And maybe if they would at least, use that
music on 'hold patterns' with our phones, or in stores in some way, the younger
generation would gradually be exposed. And perhaps, a new generation would find
it appealing. I'm all for bringing back the 'big band' sound again. Though it may be
fun for young kids to bounce around, I'm sure they would like the slow waltzing
music to cuddle up with, on a slow moving dance floor too (the dancers, not the floor).