An Aesop: Running away from your problems isn't a solution.
It's a bit of a plot point, given how solitary and non-intensive the job is. Also, the two teens encountered at the beginning of the game manage to consume a truly epic amount of beer between them, going through several cases and leaving trails of discarded cans wherever they've been. It most likely has to do with being completely isolated in the middle of nowhere for an extremely long period of time. In fact, most of the rangers up in Shoshone N.P. She claims that she chose it because it rhymes with 'thanks', Henry points out that it doesn�t.