Ah, but what Webster and most 20th century writers don't know is that a "hobbyhorse" was once a quite serviceable early form of a bicycle, and remains a viable form of transportation even now.
Picture a bicycle. Now picture it made of wood, somehow, with denser spokes, and a step-over frame. Take away the pedals. (To replicate this for your offspring, just take the pedals off whatever wheels you've gotten them. Also take away training wheels.) You now have a(n) hobbyhorse. It has two wheels, a seat, or saddle, and a way to keep all of this together.
Now then, you might ask, what is the practical use of all this, knowing what I know about chains and gears? A lot.
First, you can run along with this underneath your...Hmmm. When you get to a hill, you can run it upwards...and ride it downwards. Sometimes you can run really, really, fast...and coast a little bit. Soon you'll learn to steer, and keep it upright less by your crotch than by the same serpentine forces that keep Jefferson's wall at the University of Virginia up.
Congratulations, and mazel tov. You now can outrun most working horses. So? We-ellll...this would put you head and shoulders above most people in an animal-dependent world. It also will make you faster than the bully in the playground. The point is, a hobbyhorse is one of the best ways to learn to cycle, and if you find you just can't get off yours, since it's to walking what being high is to ordinary consciousness, well... that's everyone else's hangup, no?