It's not really a cultural issue. [1] If you are particularly puzzled, go to a campsite with vault toilets and stay there for 6 weeks. Afterwards, you will pro

It's not really a cultural issue. [1] If you are particularly puzzled, go to a campsite with vault toilets and stay there for 6 weeks. Afterwards, you will probably think going in the open is way better too. -- [1] Well, not primarily anyway -- though I suspect poop is actually considered more disgusting in Indian culture than Western culture, which leads to the "dump it and get the hell away" mentality, which reinforces the lack of use of these toilets.