I was surprised to learn a couple months ago that the way people teach their kids how ride a bike is different than it was when I was growing up. Instead of training wheels, the modern way to do it is a “balance bike”, which is a small bike without pedals, that’s low enough to the ground that the kid can run while sitting in the seat. Then, they can lift their feet up once they get up to speed, in order to practice balancing. This is much easier than using training wheels, since it lets...