Took social, and perhaps making-a-living value almost totally away from anything but tip-top talent in those areas. Nobody in your family needs you to play music at get-togethers and parties—you’re worse and less-convenient than thousands of artists on Spotify. They don’t wonder with excitement what sort of sketches Uncle Robert will bring to the next holiday, to give to his extended family. At best, that kind of thing’s indulged and tolerated now. The demand is all but entirely gone.
I reckon it was a real belief of his, given he wrote of it more than once, and whose voice it was put in, the one specific case I can call. There’s a chapter in Bluebeard about it for sure (that novel’s kind of a whirlwind tour of most of the major themes and points of Vonnegut’s work—dunno if it was intended that way, but that’s how it turned out) and I know I saw it other places, can’t recall which books.