As a further elaboration: growing up, I absolutely hated pasta salad. I could not and would not eat it. But one day, when I was about 22-23, I was working somewhere that includes meals, since shifts were literally all day for a week (save eight hours for sleeping). The cook made a pasta salad that I could only describe as “orgasmic.” I ate that same pasta salad for every meal for the next two days until they finally tossed the leftovers. Ever since then, I have been “converted” to enjoy pasta salad. That one dish completely changed how my body reacts to a food that I already tried several times.
Avocado. For some reason, for years, I thought they’d taste nasty. Turns out, they’re just like meat if it was a fruit and I dig that.
Same! I hated guacamole as a kid.
Then all the Avocado toast jokes happened and tried it, and it was great!
Then I started making my own guacamole/eating the good shit in texmex/Mexican restaurants and realized I hated that nasty supermarket national brand guac.