[stcredzero]

I'd venture that people are psychologically better off compared to the time when people had no idea how cars worked, and they would hang bulbs of garlic under the hood. (Which happened when the Ford Model T came out.)

[craigvn]

People do have no idea how cars work.

[stcredzero]

They now know enough to know the garlic bulbs won't work.

[Tyrannosaurs]

They don't know that, they just didn't like the smell.

[stcredzero]

Actually, hanging something under the hood of a running car can be something of an engineering exercise in itself. (But more people back then could tie knots and had good rope or twine sitting around.)