and everyone is pushing me to move up in the company but I can't see myself working there for years. I would rather work around the world, moving periodically from place to place, soaking in the culture.
Ah. Well this changes things. If you don't want to move up in the company (which I thought was part of the initial dilemma) then go do this instead. A degree or diploma or trade certificate isn't going to help you find work busing tables in Europe or wherever else. Like I said earlier, it's your life. And if this is what you want to do with it, it sounds interesting. Be aware there are pros and cons (such as a chance of destitution in old age), but it sounds interesting.