China, the Diaperless Land

For a country that can make 70% of all the lighters in the world in one town and that double wraps my Mentos (yes, there were TWO wrappers), they don't make many diapers.  In fact, small children walk around in pants that are missing a crotch.  Why you ask?  Well, don't know. The areas of China that we were in were very clean, second only in our travels to Hong Kong, but every bathroom left something to be desired.  Even the one toilet that was ranked by the Beijing tourist bureau (I'm not sure why we only saw one ranked toilet) that had four stars outside of its door smelled like urine and was missing toilet paper.  Perhaps the fifth star gets you soap.  Parents made peeing noises to kids and they were aimed at useful places like bushes, except when the kid didn't wait for the parents.  My first sighting of this immensely odd practice was a kid peeing almost on the wall of the USA pavilion at the World Expo.  I wasn't sure whether the kid had some way too politically active parents or whether the waterfall outside the pavilion was just too much for the little fellow.  Our second experience was when a kid let rip some pee on the clean marble floor of an airport.  All over it in the middle of the airport.  The mother then tossed a tissue on the spill and walked away.  The kid continued to play unabashed around his lake.  I would like to know how kids go number two though...