I never get the "growing out of it" thing. Unless you believe that "anime is for kids", which I completely disagree on, growing out of anime is like growing out of books. Anime is a medium, a way to deliver a story.

I guess it's also possible to get bored with references to things of another culture that you don't belong to and the constant stereotypes in the lesser shows.

PS: I'm not bashing you for losing interest in anime, I just don't understand how it happens