[norome]

I used to think i didn't like people — Until i met some people I liked.

I think it's a bit different from developing taste, what you describe. It's more about finding out who you are. I would say once you know your baseline for what makes chocolate/coffee/etc enjoyable, then taste is about experiencing the nuances within that spectrum. Some people also have a greater tolerance for things that aren't really tasty due to coming up in a culture where things generally taste plain or bad (netherlands and UK come to mind).