[kqr]

This is also why it's impossible to balance a bike without at least a tiny amount of speed. (Even a trackstand that looks completely still uses tiny amounts of forward and backward wiggle to allow the bike to move sideways under the rider.)

The handlebars aren't really used to steer the bike, the way most people think of steering. What they do is shift the bicycle further away from under the rider, which then, due to the bicycles naturally self-stabilising, steer to upright itself.