Tut tut, you should know your history. Your driving on the right is a new thing, travelling on the left started in way back in time, to mediaeval times and possibly further back, you kept your sword arm free to defend yourself. In 1300 AD, Pope Boniface VIII codified the practice with a law that decreed that pilgrims headed for Rome should keep on the left. Many more countries in Europe used to drive on the left until invaded by Hitler who made them change. Driving on the right didn't start in American until 1792 when Pennsylvania made it the law to drive on the right, others followed though not one US colony, the US Virgin Islands still drive on the left.