Epcot has been a highlight of our family vacations, ever since our kids were 7 and 9 years old (when they pronounced it their "favourite park"). Our first visit was during the Flower and Garden Festival, back in 2005.
Have you considered that maybe your parents have accidentally instilled the idea in your head that certain things can only be enjoyed by people of certain ages? Like, when you turn 30 you'll suddenly develop a liking for things you never liked before, just because you're a "grown up" now? And you'll start disliking things you used to like, because they're "for kids"?
In my experience, it doesn't work like that. Yes, it's true that I used to hate onion rings and now I like them, but in almost every other case I still like and dislike the same things I liked and disliked when I was a kid.
I think it does kids a disservice, when we keep them from things because we think they won't be interested until they're older.
Anyway, I don't drink alcohol, and we don't spend much money on food, but we still love Epcot. We like the shows, strolling around the world showcase, browsing into the nooks and corners, talking to cast members and checking out the cultural displays. For us, it's very much like an enormous museum.
If museums are your thing, you'll like Epcot. If they're not, you'll probably ride a handful of rides and then think there's nothing else to do.
This was my favourite exhibit, last trip...
We'll be back in January. I can't wait!