Why do some countries have the steering wheel on the right side of the car?

[McHarper]

Some countries have the steering wheel on the right side of the car due to differences in traffic regulations. Approximately 66% of countries worldwide practice right-hand traffic, while 34% practice left-hand traffic. In China, the traffic system follows right-hand traffic, which naturally places the driver's seat on the left side to provide sufficient visibility for observing road conditions. Early car cabins were positioned in the middle. Mercedes-Benz, one of the world's earliest car manufacturers, initially placed the steering wheel in the center of the vehicle. Later, based on ergonomic considerations—primarily the human preference for using the right hand—the driver's cabin was positioned on the right side, a design that has been maintained to this day.