Some people are really stupid. Like seriously when it comes to every day functions many people struggle. Especially when it comes to vehicles, some people just know that there is on and off and forward and backwards… never take anything else into account. It’s because of this that flying cars would be a disaster, you can’t have these things breaking down all the time or running out of gas. I’ve seen people literally lock themselves in vehicles before, never change their oil, put antifreeze in the washer fluid canister, drive on a flat until the tire ripped apart, evevtually fell off and had to buy a new rim. Some people should really not be allowed to drive without passing some sort of “basic knowledge about vehicles and what to do when something goes wrong” course.