People get older and young people want to differentiate themselves from older people, so they just do different things, including listening to different music.
This even happened with what we consider classical music, from Beethoven Eroica to Stravinski Rite of Spring and specially Operas.
Old people will consider a new style an "scandal", specially established musicians and young people will adopt it.
It is not different from Einstein being a revolutionary against the Elders and then being the Elder against Heisenberg.