I had never heard of pizza, until I was about 15, and we moved to Massachusetts from Texas, due a construction move by my Dad. A local place in Reading served pizza and other locals told us about it. Sunday became pizza night. My Dad fell in love with their cheese pizza.
Seldom did we have anything else, though occasionally we did order two or more. Eventually I did date an Italian girl, and discovered Italian food, especially her mother's.
I was warned to never mention Chef Boy Ardee to her mother, just to say I had never had Italian!