each person has their own palate, most adults tend to develop a palate for bitter foods like coffee, beer, high % cocoa chocolate, etc

It's not a rule, but a tendency, If you don't like It now maybe you're too young or your palate went another direction, not a problem imo

That was bad coffee. There is good coffee. Also, caffeine makes me feel good and get things done

I drink decaf now, but I just really like a good cup of strong coffee. I make mine in a moka pot as I'm to poor for espresso, but it can just brighten my day.

I like bitter foods though. Your pallet may just be incompatible with it, like how some people just can't do spicy or mushrooms or whatever.

Because it contains an addictive drug.

I used to hate coffee until I had espresso. Like, good, syrup-consistency espresso. It tasted like a really good dark chocolate.

Because of the psychoactive stimulant that builds tolerance quickly.

it's tasty, that's about it. and fun. caffeine is also a factor for some but not necessarily for everybody.