I think there will still be some niches where scooters make sense. I live in an area adjacent to downtown but not extremely dense (mostly 3-4 story rowhouses). traffic moves slowly because the streets are very narrow and there's never quite enough people on scooters to clog anything. I find scooters are great for going out to pickup takeout. there's also a nice walk I like to take along the waterfront. I usually take a scooter to the beginning of the path (about ten minutes), then walk back in the direction of my apartment. I also live in a rather large building, so there's always a couple scooters sitting by the entrance.
once you actually get into downtown there are just too many people for scooters to work well.
once you actually get into downtown there are just too many people for scooters to work well.