Two for me: coffee and sushi.
I didn’t start drinking coffee until I was in my middle 20’s. When I tried it as a younger person I didn’t like it because it was so bitter. It wasn’t until I was on a cruise (with my wealthy extended family) I had a fancy boy cappuccino and I was like “hot damn, this bitter water is actually good!” Now I drink at least 4 cups of coffee every moring.
I tried sushi in my teens and absolutely hated it, I remember gagging at the taste of the raw fish. Like coffee it wasn’t until years later as an adult I tried sushi again at a Japanese place in town and I was like “damn, this raw fish is really tasty!” Now sushi is a regular staple takeout food for me.
same, I don’t think I began eating meat regularly until I was like 10, but I think it was more because my parents aren’t great cooks. they tend to underseason and overcook meat. when they fry meats, they somehow do it in a way where it’s dry on the inside, and so greasy on the outside there’s no crispiness. a couple years ago I showed them how I season meat (1 tsp kosher salt per pound), so at least they’re doing that now.