When You're Younger, What Happens to Us?

I think especially in the last couple of years, people tend to return to things that feel familiar and comfortable. That's the stuff that you listen to when you were younger. And our brains are shaped that way too. I mean, just mechanically, you learn things faster when you're younger. When you're young, music finds you. Yeah. Then you get to a certain age and hairline and you have to go find the music. It's no longer a part of your world and you don't even have... And you have no reference of whether it's cool or not. What happens to us? And has it happened to you ever?