Not only is music different now than when we were kids, the whole approach to how it’s created and distributed is different.
I grew with everyone I knew listening to variations of much the same thing — top 40 rock ‘n’ roll. The only exception were those who, in my school, listened to top 40 country. Really, that was about it. There just weren’t a whole lot of other options.
Today, far fewer people buy physical copies of the music. Most anyone can find anything they like online on various music services. As a result, the power of the record companies and radio stations to dictate what’s listened to has diminished. At the same time, almost any indie band or musician who really wants to can publish their music in the hope it finds an audience. The result of all this is every music listener finding his or her own favorites that hardly anyone else has heard of.