When I was a kid, I listened to the two AM stations that were popular in the Tulsa area during the early to late 60s: KAKC and KELI. (This was long before KMOD took over the FM airwaves.) Those stations were played all the time at our house, because my older sisters (a pre-teen and a teenager) listened to them constantly. (Several transistor radios with the single earpiece provided service over the years in our household.) That's where my tastes in music were primarily developed.
I didn't appreciate it until much later in my life, but those two AM stations played at least a small variety of popular music every day: British Invasion, garage bands (i.e. the kinds of bands you'll find on Nuggets compilations), Motown, some Stax r&b, doo wop, surf music, teen idols, girl groups, the occasional blues record, and even country folks like Merle Haggard and Freddie Hart. I can also remember when they played "Israelites" by Desmond Dekker and "Double Barrel" by Dave & Ansel Collins all the time. Those stations are probably why I like almost all kinds of music (except for bad music).
As for the British Invasion, most of my classmates fell into that Beatles vs Rolling Stones thing. I love the music of both bands (and I managed to catch the Stones live a few times), but I primarily ran with the Beatles crowd. Still do.