The only thing that prevents me from riding an e-scooter to work every day is bad weather, so I would actually love if we aimed even lower for personal city mobility. Make the vehicle weigh around 120 kg or so. Make it go 30 km/h tops, that's still plenty. Make it have a single seat, a roof, windshield, two front wheels, one rear wheel and a 1-2kW wheel hub motor.
A vehicle like that that could use [some of] the bicycle infrastructure we already have and would be significantly cheaper and easier to operate and maintain than a full-size car, while still offering acceptable comfort for <1h commutes.
(I live and work in Prague, Czech Republic, Europe.)