At least it is possibly to cut back your use of toilet paper without dire consequences so long as you have clean water. It might not be pretty or wanted for most of us, but it is possible while still keeping clean. Bidets might get more popular, if available, and others would learn from the folks that use cloth diapers and real washclothes on their babies.
This situation isn't as easy to fix when you replace toilet paper with medication or health care. It isn't like one can simply make do if they are out of medicine.