I recently bought a book called "Toilets of the World". It has photos of all the places and non-places you can empty your bowels. This is called "bathroom literature". I use it for art. Some people think it's nasty to even wipe---period. They wash themselves. Some jump in the river and do it there. That's really nasty, but you don't even have to flush or wipe.
Wiping is personal. Different people wipe themselves the way that is more convenient or healthy for them. Location matters. Facilities matter.