About as safe as early factories. To take the discussion further off topic (sorry) It is quite easy to limit speed to the maximum allowed speed in a country. It

About as safe as early factories. To take the discussion further off topic (sorry) It is quite easy to limit speed to the maximum allowed speed in a country. Its not hard to make a system that requires switching into city or highway mode with logging and/or remote mode detection. If we make a lot of effort we can limit speed by the amount of accidents on that location. We can further limit it by the amount of accidents the driver had in a similar situation.