All true, Will.
Most drivers have no concept of 'expect the unexpected.'
You raised a good one.
I used to commute in Bris, and at one point, there was two lanes of peak hr traffic all turning left together. After a heavy overnight storm, but the sun was out and the water had gone. A manhole cover had popped off, and believe it or not, no car had dropped a wheel into the hole! (maybe later?) So hundreds of motorists had good reactions that day!
Yes, it is true that few motorists can be trusted. But will new laws stop them doing thoughtless dangerous stuff?