I know a family that lives in Central America and they have had natives into the city to their home. These are people who go to their country church.
One church member did not know how to use a toilet, so they pooped in the shower.
It really is just what people get used to. If you don’t know better, you can’t do better.
Many people in LatAm are not familiar with modern toilets. There are signs in some “immigrant communities” in California that have signs in Spanish to place used toilet paper in the toilet and flush. They think it goes in the trash can. Often the rest areas along I-5 have used toilet paper in the trash. Gawd awful, and massively unsanitary.
Similarly, there is the “China standard” toilet that is basically a hole in the floor and you squat over it. I’ve been in factories and on trains that had these little gems. I never used one but am pretty sure my aim would be poor. You also have to guess how much paper is needed since the rolls are outside the “stall”.
I love America.