Well it must be true if you knew I was going to say it.
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Well, of course it's you that drives on the correct side of the road and the rest of the world that's got it wrong. Makes perfect sense.
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Although a lot of the world do drive on the right, there are also quite a few that drive on the left. Australia and New Zealand for two.

Heres a map:


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Well, Australia and New Zealand is on the upside-down part of the globe, small wonder they do everything backwards there!

Can't even get the seasons right.
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But both NZ and Aus are former British colonies. As are Cyprus, Malta and Hong Kong who drive on the left. The exception to the British colonies is Japan. The Japanese reason is something to do with Samurai warriors, majority of people being right-handed and fighting on horseback in the middle of the road.
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Trust me left is the way to go
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Same reason for Great Britain, only change samurai for knights.
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Also the reason why spiral staircases in castles spiral all in the same way. To help the occupants repel invaders.

As everyone back then was forced to be right handed (left handers were considered to be the work of the devil), the invaders coming up the stairs couldn't swing their sword/weapon properly but the defenders higher up had space for much more of a free and mighty swing.
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Therefore a secret Left hander coming up the stairs would catch them by surprise.
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If he hadn't already been killed by his own army of course, for being a witch or something.
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