What do you think those policies might look like? It's true that we have more screen based entertainment options today. We also have a very different music distribution system that is likely influencing things substantially. In the 1960s, I imagine getting on the radio was what it took to launch a career, now it's matching the algorithm on spotify.
I don't know what the right policies would be, but I noticed that smart, driven and disciplined driven people will always find a way to work around algorithms to get to the top, it's not something the government can legislate in order to get a desired outcome.
It's not like becoming famous back then was easy either. Plenty of good bands never got anywhere. The Mona Lisa wasn't a famous painting until someone stole it in 1911, before that nobody gave damn and now it's the most famous of them all. Survivorship bias and randomness in art is real.
