system
Given the following post, respond as if you're commenting on Reddit:
human
I never used to like coffee but now I love it, I was told it's an aquired taste. Same with beer, how does that work?
gpt
You're taste buds actually change as you get older.  Basically your ability to taste bitter things is reduced as you get older, so stuff with a naturally bitter taste (coffee) doesn't seem as bitter when you're older.

That's a major reason.