I feel like it would have made more sense if the radio in New Vegas played music from the 2070s rather than something straight out of the 1950s to represent the old world with some oldies but also other types with electronics to better fit the retrofuturism of Fallout. When I think about what type of music people would listen to during the 2070s, I would think of something similar to a soundtrack called "My Chrysalis Highwayman" from Fallout 2. To me, that represents the retrofuturism and old world of Fallout better than some random oldies, which Bethesda loves to abuse like the Fallout show.