I see so many mean comments on here, like "indians only poo in the streets" or "they wipe with their hands." Let me tell you, it is actually more sanitary to wipe with your heads. You probably do not know this, but in India, we only wipe our behinds with out NON dominant hand. This allows us to thoruhgouly get all of the poop out. When other countries wipe, they use weak toiler paper that still leaves stuff in their butt and doesn't totally clean it. With your hand you can really clean it. And we use our other hand for other activities like eating.
So no, it actually is totally sanitary. It makes more sense to wipe with your hands than with soft paper.