Also honestly, if you just like music period, then you probably end up liking a lot of eras
I'm 29 and in college I went back and listened to a lot of Public Enemy, Black Sheep, Al Green and random stuff way before my era. Started digging 70s and 60s soul and breakbeat sample sourced music.
I feel like people who say "It wasnt in my era I grew up with" skipped out or have yet to reach their 20s when they start opening themselves to a whole lotta other music cause of all the college parties and themes.
Also this the broaband/quick download generation, you would think there would be more music nerds in general where music from different generations appealed to them as they were forming their music taste once they get past 18