On the flip side, being required to drive everywhere because there is no transit option is a negative impact on quality of life, especially in cities.
Ultimately it comes down to how good the transit infrastructure is. Some cities make transit feel effortless and get you anywhere you need to be; others make you battle your way through it and lose a lot of time.
Obviously not a solution for every situation, but if you only need a car occasionally then it would likely work out well.
The "Not Just Bikes" video on this topic: https://www.youtube.com/watch?v=OObwqreAJ48
Personally I only drive once a week at most, but there isn't a car share scheme locally. If one started up that was cost effective and convinient enough then I'd consider it.
- Car won't available when you need it.
- You will come to a car, which will have steering wheel and driver's seat in a setup incompatible with your physique, so you need to waste your time to set it back. Every. Damn. Time.
- Car will be dirty. All the time. Dog hair, food crumbs, trash (i.e. coffee cups, cans). You will take it out and next time it will be back
- If you are sharing with a smoker, I hope that you like smoky smell of your car.
- Car will be always empty (gas, battery) because previous user has no incentive to fill it up.
- Minor accidents will go unreported, and then you will be wondering, where this scratch came from, why is this mirror busted or why I need to hold my steering wheel 10 degrees to the left to drive straight.
- Everybody will try to evade maintenance fees - You want money for winter tires? I don't drive in winter man... 2 weeks later your co-owner will want to drive, because it is his car too!
Carsharing is a dead end and whoever will try it, will quickly revert back to his own car. Less headache.
To start off, smoking in the car is not allowed. If they detect dog hair and can deduce who introduced it, the user will be banned. If someone left it with less than either a quarter or a half a tank of fuel, the offender gets reprimanded or ultimately banned. Minor incidents and maintenance items are taken care of on a complaint basis - once a user complains, the company fixes it. Eventually. It's not as bad as you're making it out to be.
You need to offer other methods to get around first then add them.