Black cab drivers are a telling point against the argument that people would drive better if they were required to have ridden on some more vulnerable form of transport (bike, moped, etc) before being allowed to use a carThe test maybe harder but IME 90%+ of black cab drivers I have encountered are impatient c***s who don't give a flying what-sit about anyone else on the road. The bit about self-righteousness is spot on. Maybe these dubious qualities are part of the test