Often they end up taking themselves off the road... permanently. Hopefully without killing anyone else in the process.

I've more or less stopped driving now, but had to hire a van last weekend.

I was glad to hand it back on Monday morning to be honest. No licence or insurance to worry about, quite apart from the roads full of morons these days. Lord knows who is teaching the recent generation of careless idiots... zero use of indicators, not giving way, no courtesy (like letting you out of a side road by flashing you, because they're going to be turning into the road you want to be out of), STILL yacking on phones etc.