Dockless e-scooter sharing seems to me to just basically be like installing those moving sidewalks at airports throughout an area, without having to actually build the moving sidewalks. I am a person who will choose to walk instead of standing on a moving sidewalk because I relish the opportunity to move my legs after or before sitting on a plane, but many people just love standing on those things and being moved by them, literally and figuratively.
They don't need to be useful for carrying cargo because people can get ride-shares and deliveries when they do shopping. If most people learn to use them when it's convenient instead of going by car, it will relieve a lot of traffic congestion pressure.