On the one hand people seem to get good enough on them to be able to race down mountains. But they do seem somewhat dangerous when in the mix with cars,bikes a

On the one hand people seem to get good enough on them to be able to race down mountains. But they do seem somewhat dangerous when in the mix with cars,bikes and pedestrians. There is I imagine a learning curve. https://www.onewheelracing.com/ https://www.onewheelracing.com/ They're fairly uncommon here around Boston, and usually riders are wearing motorcycle style helmets. I see a lot more electric scooters zipping around (like the Bird and Lime ones, but privately owned). The only device I've seen someone fall off of was an electric skateboard (No particular reason (they were coming to a stop at a light and fell foward.).