I am sure there were some reservations about using the Docklands Light Railway,London in 1987 as it operates as a driverless, computerised system instead of the normal London Underground driver based system. Nowadays up to 500k people per day (at the height of the 2012 Olympics) treat it as perfectly normal. All over the world systems are running in the same manner. It's only a matter of time before we percieve cars, buses and Johnnycabs in the same way. Eventually of course we will lose the ability or desire to take manual control and a driving licence will become a thing of the past in first world countrys, only required if you want to keep antique vehicles. Travelling to less developed countrys will then be even more of an exciting rollercoaster ride as people still control the roads in absolute meyhem.