There are a lot of people who are driving an EV with several hundred miles of range to work less than 20 miles away. That extra order of magnitude of battery capacity is a lot of extra weight. Imagine I’d you could instead rent a battery trailer for those occasional long trips?
I think e-bikes are the way to go, tho perhaps we can define a new and smaller class of vehicles with cabins and/or inherent stability for those unable to ride.