I go back and forth on this idea. It sounds very convenient, but then I also think about the crap I keep in my own vehicle that I like having close at hand: a serious first aid kit, some food and water, a cheap picnic style blanket, flash light, multitool. Stuff that I'm probably not going to carry on me but that I want nearby in case there's an accident or someone gets hurt or if I get stuck somewhere for a few hours without warning.
Any reason that couldn't be in the trunk of a shared car? Each piece could have a sensor in it to know when it was removed/returned, and things like bottled water/snacks could simply be charged with the ride. Additionally, if you're concerned about recycling/$ for the water, you could carry a bottle with you, which is not an unusual change of habit.
In addition to the usual stuff you'd find in a kit, I threw in a four-pack of single-serve Krazy Glue (cyanoacrylate superglue), which is useful for controlling bleeding (a spray might even be nicer). Since I live in a climate that sees actual winters, I also included a pair of mylar emergency blankets (they also make a "sleeping bag" style), and I of course keep the usual extra set of boots/gloves/hat in the trunk during winter as well (totally standard around here).
I'd be interested to hear any other "unorthodox" additions to the usual kit, if anyone has suggestions.
It's classic idealistic futurism. We imagine a bright and shiny version of everything.
We don't think about handicapped people whose cars carry medication and equipment for them.
We don't think about carrying stuff like nail clippers, stain sticks tampons in the car, either. So we'll waste more money without persistent access to this infrequently-used items.
We don't think about occupational vehicles like plumbers' and electricians. With fewer ICE vehicles on the road, their vehicle maintenance will be more expensive and our maintenance and construction bills will increase.
Not that I'm arguing against car clubs, etc. I'm trying to validate your line of thought.
Not only that, but cars shared with no supervision (as in a taxi driver) are going to be the nastiest places in the city. All sorts of things are going to happen in those cars that you don't want to follow.
