some kind of two-wheeled experience (pedal and motor powered, separately, not one of those Belgian bikes…) would be good for drivers. But just as the motorbike test has got more expensive and more stringent, so has the car test.
I think there’d be a much bigger safety benefit from making drivers take an annual theory resit and a proper retest every 5 or 10 years than from making the one off test harder than it is now.
My old neighbour was given a driving licence in the army. He was told to drive a truck somewhere, told them he couldn’t drive, so they took out a paper licence, wrote his name on it and told him again to drive the truck. And that was it. He had another 70 years of driving and that was the total of his tuition/testing!