Have you considered becoming a Flight Attendant?

Personally, go study what you find interesting. While you might grind it out for a degree that will have a good payout or because you want to travel, but you'll never be happy or satisfied unless you're doing something you like.

If you want the ultimate flexibility in terms of what to study, I'd say find a place that gives you some latitude in terms of majors and minors. My major was in Engineering and my minor was in Business, Management, and Economics. That gave me enough flexibility to choose my career path.

I'm in healthcare consulting and I average 105 - 110 flights a year and spend about 175 - 200 nights on the road. Being a road warrior involves a lot of trade offs, most of the time with your personal life. I don't really advise anyone going into my line of work purely for the travel aspect since I know too many people who have quit because of the strains the lifestyle created on their family.

That being said, if you've got nothing really tying you down , then sure, go ahead and take advantage jet setting around while you can.

oh, and welcome to Flyertalk!