Likewise kick scooters. Fast and quiet enough to make pedestrians think "you are like a bike and I should treat you like one," but in fact far too slow for road

Likewise kick scooters. Fast and quiet enough to make pedestrians think "you are like a bike and I should treat you like one," but in fact far too slow for roads and unexpectedly agile on sidewalks. Basically, all the vehicles that sit in the intermediate gradients of speed/acceleration are in a position for their simple existence to offend everyone else.