In the future automation will do most of driving. But in certain situations it will give the wheel back to driver. This will happen when car does dot have enough information to drive safely. It will probably happen during heavy rain or road covered with snow. So in practice average driver will drive rarely, but when he or she is asked to drive, it will be in worst weather. In aviation situation is the same. In average flight pilot manually flies only four minutes. Two during ascend and two during descent. But in some rare situations autopilot switch off and gives stick pack to pilot. When this happened in AF 447, pilots did not know what to do and plane crashed. Air France Flight 447 - Wikipedia, the free encyclopedia Could this happen in futures self driving car, when it suddenly gives wheel pack to driver during heavy rain or snow covered road?