As for the changing taste buds from when we were kids thing, there is an actual explanation for that. Children's taste buds are a lot more sensitive to bitterness in general, because of poison-related issues. Y'know, that thing where kids see something cool and then want to stick it in their mouths, and it turns out it's something crazy toxic? As adults we can usually recognize when something is Not Good For Sticking In The Mouth, while children are still trying to figure the world out.
SCIENCE.