If you just want a 4 year degree, get something cheap, easy, and generic like an English degree with a minor in something you're interested. It will open more doors to you and give you options. You can always go back later to for a masters once you are in the work field for a while and have a clearer idea of what you want to do.
But get the cheapest 4-year degree you can. That means living at home, working part time, and doing as many online classes as possible. Even though you don't want to waste money and time going to school for something you don't know you'll use, the fact is having a 4-year degree in ANYTHING gives you a step-up. You can be the best employee ever, but when you go for a promotion, you might find that not having a 4-year degree is a blockade. Therefore I will say it's fine to go to school without knowing what you want to do...as long as you at least have a plan, even if that plan is just to get a degree so that you can have more options.
But do not go to college if you are looking for answers, or you just want to live the college life.
To answer the question in the subject line, I consider debt a frenemy of mine. Or more accurately a business partner. I use debt strategically, and in a way that I benefit 100% of the time. It's not bad, or evil. But it can certainly be misused.