I would say it's something you have to work at a lot before you'd know whether or not you'd be happy doing it full time or even part-time. There's a lot of drudgery and insane attention to detail involved, and you don't start off editing major feature films - initial work is not going to be exciting.
You could theoretically take those courses at a film school, majoring in film production (not studies, as that's essentially English except for movies).
You could get a good job doing it, but you'd have to be better than the other people applying for a job. And right now, there are more than ever before due to the relative easy of acquiring and learning an NLE.
My thoughts: it's too soon for you to make a decision about what you want to make a career out of. Try it, dabble in it. But try other things too. The best advice anybody can give you here is to learn more than one thing, so you have options. I spent a lot of time learning editing and shooting while I was at school, but by the time I graduated, the market wasn't exactly friendly, so I opted to use my Geosciences degree to get work as a geologist instead.
The idea of college - especially if you go liberal arts - is that it's a low-risk environment in which to try multiple things that would lead into a career. Explore those options.
Just don't expect too many opportunities out of a Bachelor's degree, especially if it's in something common and not all that useful, such as English, History, Art, etc.
Pursue something you like. But try to pursue more than one thing you like so you don't paint yourself into a corner.
One thing you'll discover in any job is that it's not like what you did in school, and school can only take you so far in terms of preparation.
