There are many problems with self driver less cars. Nevertheless one problem is technology, in this case the technology would be unsafe to use. Inside the technology could be a programming error caused by a human resulting in an accident with a casualty or death. Another hazard is the price of adding a bunch of radars and sensors.
The technology is unsafe and experimental and can cause serious problems. Moreover the whether would be a complication, if there was a sun glare, then the sensor would be blind. If it were raining or snowing the sensors would not pick up as much. What would be annoying would be if a car changed directions or change routes because a piece of a harmless piece of trash (Tribune News Service).