when i was younger - just passed test etc..i drove like a fool. As fast as any car would go everywhere, all the time, thinking back now it was pretty reckless but i guess lots of people were the same. As i got older i drove much more sensibly. Still not slow, but not stupidly quick in silly situations. But during the time when my driving got better was when more and more speed cameras started to appear.
My dangerous driving was all but gone, but i was getting fines and points every week as often as i was putting petrol i the car....couldnt believe it.
Problem is you spend so much time scanning the horizon for mobile camera units you concentrate less on the road and trafick. Even when your not speeding your still on the look out. When somebody spots one everybody panick breaks almost causing more accidents....crazy. I hate them.