Teaching kids how to ride a bike [fuzzy control]

The usual way to teach a kid to ride a bike is by using training wheels. This creates a somewhat stable bike so the kid will hardly ever fall. After the kid has mastered a bike with training wheels, the wheels are taken away, and the second stage of learning starts. At this moment, since the kid is not completely prepared for a bike without training wheels, the kid may (and does) fall. So we either risk the kid hurting him/herself, or we have to have the kid under time-consuming adult supervision. The main problem with the control is that there is an abrupt transition between the two stages, so the kid goes into the second training stage unprepared. A natural solution is to make this transition gradual. We propose Fuzzy Control