I had a buddy who just did that. Young guy ( 24 ), nothing holding him down but a 1000 dollar beater car and some furniture. Industry is in a downtown and he just quit in the middle of a management meeting to the CEO. First step is a yoga retreat in Columbia and see where it goes from there.
While i think it sounds like an interesting thing to do i disagree with the concept that if you don't fuck off and hostel around the world for a few years you are "just existing" . Different strokes for different folks.
I know 100% that I wouldn't like living like that, but don't fault the people who do.
I have lived in 3rd world countries before, its not all its cracked up to be. I have grown to quite appreciate the comforts of modern civilization. Not to mention fast cars.