As much as we might like it to be, transportation by motor vehicle has never been a right. Liberty of movement is a long-recognized Constitutional and international human right, but it has never included movement by any means other than our own physical power applied to walking or running, pushing ourselves on free-rolling wheels, or pedaling a bicycle. In its most significant context, micromobility is the exercise of a legal right to use a proxy motor (a motor, not coincidentally, with about...