Another idea is that in the 1700s, people in France and in the United States started to use wagons with several pairs of horse and to drive on the right side of the road. It was easier for the drivers to sit on the left and control the horses with a whip in the right hand, and it was safer if other vehicles passed on the left so the drivers could see the distance between vehicles. Some people say that in England, people always drove on the right.