I'll add my experience! I'm 22 now, just for reference.
My dad is a big Beatles fan, and my exposure started early. He told me that the cassette tape we were listening to on the way home from the hospital after I was born was The White Album, side 2! He owned all their albums on cassette, and we listened to them all the time. Growing up, I loved Octopus' Garden and Yellow Submarine. I wanted to be just like Ringo! We had a record player, and my favorite record was Beatles '65. I would play I'll Follow ...