One day I popped into the bathroom at my daughter's school. It was hilarious: the sinks and toilets are scaled-down to accommodate the tiny dimensions of preschoolers. This presented an aiming challenge for me, but I'm proud to say that I managed the task admirably.
I'm not sure why they make these; nobody has micro-facilities in their own homes. Maybe it's just to let them know what the bathroom experience will be like when they're all grown up.