There are many courses of study that are designed to lead directly to a profession. These often end with a professional certification. These are known as professional programs of study.
Other courses of study are more general and often end with a degree. These courses are known as academic courses/academic degree programs.
I really firmly believe that people will be more successful if they choose a career they have a real passion and interest in. As the saying goes, if you love what you do you’ll never have to work a day in your life. You should also consider family members you can follow at work, so you get a realistic look at different professions.
One of the good things about college is that in the beginning you take general education courses which reinforces the things that every well-educated person should know. It also gives the undecided student the time to select in what career he is really interested.
Your major does not have to be decided immediately. You can go into college as undecided; and as you work with your advisor, look at all the opportunities available to you. When choosing your major, be sure to have an end result in mind. Sometimes people major in things like Art History (Nothing against the subject because I love art also.), but they do not know what they are going to do with it after graduation. You like the subject, but what are the career opportunities. In today's world, it is important to have a end result in mind that will hold up in today's economy.
It really depends on your personal preference. Considering that the job market isn't what it once was I would look at professions that are somewhat "recession proof" and try to find something that interests you in that area.
If you are still not sure, start taking general classes your first year and work with your college's career planning and placement services to see if they can help you find some clarity and discovery for your future path.