But people tend to get used to the environments they grow in. So if you had low access to water, you end up learning to shower only once in a while, and you take it as something natural. Like the cliche (racist cliche?) of people in America complaining about people from Europe or Asia having a more apparent body odor. This also reminds me of the movie (or books) Dune. Where people from Arrakis are used to drinking very little water, and deem people from other planets as "fat on water" because they can even smell their "excess" off water on their bodies, and see it as a sign of wastefulness.