Same. Maybe genres are roughly set, but for me that wasn't even true. I didn't start to get a deep appreciation for classical music until my 20s.

I think the popularity of music streaming services has made it so easy to try and find new (new to them) music, that people continue to discover forever now.

It is common in English to make statements like this that are attempting to assert a general hypothesis, and are not expected to pedantically account for every individual human being.