I went to China a few years ago with the family. We visited a McDonald's. My kids were small at the time and wanted to play on the PlayLand equipment.

That's when I really noticed that most Chinese kids up to 4 or 5 years old wear crotch-less pants so that then can pee or poo in public wherever they please.

Check it out for yourself online. It's true. Needless to say we didn't let the kids play for very long on the slide.

Just type in "chinese crotchless kids pants" into Google Image search... Not pretty.