If I’m being honest, I wouldn’t let my (future) kids drive a little car. They’d save up enough money to get a shitty little car, and I’d pay the rest to get them a big car. I’ve seen what happens to little cars in crashes, and if people continue driving the way they do, I’d rather my kid be in a big car rather than a little one (not Western nation).
This is precisely why I’d want my own kid driving a tank of a car, until laws are passed such that nearly all vehicles become smaller. I’d make him save up money to get a little car, and match whatever he’s saved to get him a far larger car.