I think they make a ton of sense in certain areas. I was at a convention in San Diego a little while back and e-scooters seemed like the official mode of transit. It was a bit annoying since they were hobbled by the convention center to a dangerously slow speed (something like 8mph when you're riding in an unprotected bike lane) but to be able to walk out of your hotel, hop on a scooter and take it 10 or 15 blocks to get to the convention center, then grab another one and take it 5 blocks to lunch, then a different one to go the 20 blocks to the USS Midway all for a few dollars was awesome.