[dgivney]

It is the left side in my country. Which creates a problem when people from right-sided countries visit my city.

I noticed this in China, a densely populated mostly right-sided country. Whenever a British engineering firm would install escalators they would set the direction opposite to the flow of human traffic. You would walk up to it on the path on the right side and be forced to cross the path of oncoming people to use the escalator on the left before having to cross over again once at the top.