Christopher England <...> said:

Oh how da yoof would have thought it most strange if in 1967 Top of the
Pops included old recordings of Vera Lynn in the middle of a show
supposedly highlighting the current top of the pops.

Back in 67 you would never have seen da yoof of the day wearing
Vera Lynn T Shirts, but these days you can see many of da yoof
wearing T Shirts of Led Zep, Pink Floyd etc.
Whereas dance music is anathema to many older folk and
would fit your Vera Lynn analogy, Rock music nowadays is
mostly copying music from 30 – 40 years ago and many
youngsters go back to the original source