I didn't really get into the Beatles until college. I mean I knew a good deal of their bigger songs, but I certainly wasn't brainwashed by my parents. I thought most of it was oldies station fodder. But then my roommate would play their CDs and I'd here deep cuts and their later era stuff and I was like holy shit this isn't what I was expecting. This is some innovative stuff. Then I went back and listented to all of it and became a member of their church. Yes some of the early stuff isn't that exciting or fun to listen to, especially when most of the albums were full of old R&B covers. But from Help! on, most of the albums are full of great. Again, not all of it is great, but most of it is.
And yes I've now brainwashed my kid. I took him to Yellow Submarine in the theater a few years ago and he even correctly spotted the Beatles reference in the Minions movie.