Not even a little bit true for me. I listened to pretty much only country at 14 and I don’t listen to any country now, not even the stuff I liked then. By 16 I had switched to mostly rock & alternative. I will still listen to that occasionally, mostly for nostalgia, but it isn’t on any of my playlists. I suspect most everything on my regular playlists came out after I was 30, but it continues to shift forward over time. I suspect eventually most of my current playlist will age out too.
Not even a little bit true for me. I listened to pretty much only country at 14 and I don’t listen to any country now, not even the stuff I liked then. By 16 I had switched to mostly rock & alternative. I will still listen to that occasionally, mostly for nostalgia, but it isn’t on any of my playlists. I suspect most everything on my regular playlists came out after I was 30, but it continues to shift forward over time. I suspect eventually most of my current playlist will age out too.