Comment by Jblx2

Seems like you want to use a different word from "survive". Unless you are really meaning that they die. Why wouldn't going to any foreign land be a burden to someone? New customs, language, food, etc.? Maybe you mean, "why do they complain a lot"? Why are these young people traveling to third-world countries? Are they being dragged along by their parents? Are they vacationing? There for a part of their job?