GopherGrad and Synthia both have real good points. Look into the NGOs to see exactly what they require, or just go out and get yourself a job and you may well find that you decide in a year or two that college is worth putting up with if you really want to live abroad.

Studying overseas is another option - but in many countries (certainly in most of Europe) you are very limited in the amount of time you are allowed to work if you are a student. (Often only vacations and holidays.) Foreign students are considered a major source of revenue, as they pay full fare tuition, whereas the local students are largely subsidized by the government.

To be honest, one of the biggest selling points when looking for a job overseas is some level of experience and expertise in "the American way" of doing a job or profession. An American with no job experience is in basically the same position as a local high school graduate - and most countries have plenty of them.
Cheers,
Bev