I'd make one of our family cars a tiny car if they were super affordable and legal. I have no car lust or car pride at all, for the most part a car is just a way for me to move groceries or my kid. The car I use only hits the road once or twice a week, once to buy shop supplies and maybe I take a random trip to Lowes or what not every few weeks. I'd still walk or bike for most of my shopping and one of these things would be easy to store and park.
These vehicles remind me a lot of quadricycles which are quite popular here in Norway. They're legally classified as mopeds here, so it's easier and cheaper to get a license for them, in addition to the vehicles themselves being much cheaper than cars. You're in the USA, right? I have no idea if quadricycles are a thing there.