I can't say I've "outgrown" anything. Perhaps like many here, I've simply had my fill of a few things and my interests have taken a different tangent in the ensuing years, leading me to a completely different place.
When I first got heavily into music it was The Beatles 24/7. Didn't want to know about anything else, but months later discovered the Stones, The Who, Hendrix, Cream (and other iterations of Clapton), etc, and that opened my world up to a bunch of other things, and now there's dozens of such acts, both rock and blues that I listen to while hardly paying the Beatles any mind at all anymore. It's not that I dislike them now, not at all...…...I just went at their music with such a fury so early that I took in all I could take in from them, and then it was on to other things. I may still enjoy throwing on a Beatles album now and again, but can't listen with the same level of interest and wonder and excitement now. My ears just aren't that new.