The obvious choice would be food. I grew up hating broccoli, asparagus, and fish. Now I like all of those, although I can only eat so much asparagus. More recently, jazz music. I used to think of it as a very boring genre of music. While I could appreciate certain songs from the past that obviously had a jazz influence, I just couldn't give jazz a chance. I'm currently taking an intro to jazz course online. I expected it to be a relatively fun course, but I never expected to completely fall in love with it. Now, I can see how a lot of the earliest jazz is sensual and wild. When I feel like listening to music, more often than not I just stick a jazz playlist on. My problem, it turns out, is that I was listening to the more mellow jazz and it would make me sleepy. I like that kind too, but I'm so glad I've given it another chance because I get so much enjoyment out of it now.