You don't need a map of your future in your pocket to get done in four years. You just need the freedom to explore your options in a framework that keeps you on track.
Not everyone is alike, and not everyone's interests can fit squarely into a predesigned major or degree. General studies are actually about being very specific with your program. Since it's you and your advisor who will be creating your degree, it can be designed to fit the future you have in mind.