  I don't see why they just don't construct an outhouse or at least a latrine. My late mother grew up on a farm, and for approximately the first twenty years of her life, that's what the family had. They dug the hole, built the outhouse, and when it was as full as they cared for, they covered over the hole and dug a new one.   On a related point, I worked for an electronics giant quite some time ago. They had female immigrants from someplace in SE Asia. These women used the toilet all right, but they always left dirty shoe-prints on the toilet seat. They refused to stop squatting when they pooped, which made the westernized women (not all of them white) quite angry.  Worked with an Indian a number of years ago that did the same thing. Unfortunately for us, his diet made his feces less than solid and the jerk would always spray the seat given the distance of his butt from the seat when he roosted on it to do his business.