Completely dependent on the professor. I'd imagine most schools will have a LOT of classes to offer, mine does at least. So even though there are gen ed requirements that I have to take, it's easy to find classes I'll enjoy despite them having nothing to do with my major.

The curriculum for classes in college is a lot more liberal so it's the teacher's responsibility to make his/her class interesting. I'm studying music, but I took meteorology and that was really cool. My Israeli-Palestinian conflict class has been my favorite so far. But then I also took a public speaking class which made me feel like I was in high school again. Since I'm going to an art school, the standards for gen ed teachers are understandably lower, but on the whole I've been impressed.

Good luck with the remainder of your high school work! I'd say if you can figure out what you want to do now, you'll spend a lot less time doing "busy work" for the rest of your life. Although I'm only a couple years older than you, so someone with more experience might disagree with me about that.