Don't we all think we drive on the correct side of the road? Be it left or right?
This is an interesting map yet it does not tell the full story. I expect the figure is skewed by highly populated African countries and India, but 35 percent of the world's population drive on the left hand side of the road from the right hand side of their cars.
Worldly experts I am sure can tell me the name of the two South American countries that drive on the left. Why? Former British colonies?
Most of the left hand drive countries are former colonies of Britain, but there are some odd exceptions, to me being Japan and Thailand. Neither were colonies, not even any real British connection. Google tells me Japan drives on the left because of the side a samurai would pull out his sword, which is much the same as why Britain drives on the left hand side. Roman chariots and all that.
Your trivia for the day is that the rear left hand door of a Japanese taxi is motorised and when a taxi stops for you to climb in, the door opens for you and then closes once you are inside. In left hand drive countries, that would be right hand side rear door. While I was mentally prepared for it, my normal inclination to open the door was so strong.
Thailand? I really don't know. Former colony Burma drove on the left, but it has changed to the right hand side.
In 1967 Sweden switched from driving on the left to driving on the right. Tram lines had to be changed and a huge effort was required for the change. In 2009 Samoa changed to left hand driving to match Australia. But American Samoa continues to drive on the right.
I really can't see any reason why driving on the left or right would be better than the opposite. They are just different and the human brain cleverly and quickly adapts from one to the other, mostly. I qualify this with young human brain. I would not attempt it now.