It is much cleaner than toilet paper. You kind of get a bath every time you use the toilet, and no irritation from the toilet paper. A lot of people claim to know exactly which meal made them sick. Someone else will eat the same food and not feel a thing. Diarrhea is fatal if not traeted in time.
Diarrhea leads to acute dehydration and loss of body fluid.
Sometimes high temperatures and humid climate also lead to dehydration. This is very common among foreigner particulary those comming from cold countries. Loss of body fluids leads to cramps and unconciousness which subsequently impairs proper functioning of the body. Treating dehydration is very simple. These packets are free of cost.