Vehicle automation may have a negative impact on driver skill since drivers will spend less time actively controlling the vehicle and will not build (or maintain) driving skills. Partial or conditional automation requires additional driver capabilities to effectively monitor the function of autonomous systems and maintain the awareness necessary to resume control of the vehicle when required. These issue pose challenges to the safe adoption of autonomous systems. This paper discusses the transition to full autonomy, identifies similar situations in other fields and considers mitigations that might be employed.