Like you, I can't stand the music I grew up with all that much (maybe a few songs here and there), but I went through the trance/electronic fixation in the 2000s. Now it's almost anything that I enjoy, which probably doesn't say much, but I'm presently listening to some chillstep and was listening to metal covers of the sea shanties "Santiana" and "Roll the Old Chariot Along." A few weeks ago, I was listening to Norse-inspired works by Einar Selvik.
I can't imagine we're that statistically significant or if streaming may have some impact on availability and interest. I'm unwilling to believe it's a personality trait, for instance. (For another data point, I was born in the early 80s.)