The worldwide standard should be that people should drive on the right side of the road. The same should apply to aircraft, boats/ships, walking and passing through doors and stairs. Most people tend to be right handed and have a natural tendency to keep right (www.travel-library.com). Creating a global standard to ‘Keep Right’ in all forms of transportation would make life easier for everyone in the long run. Young people, especially, should be taught this practice from an early age.
Also, people entering a main walkway path should yield to people already on that path.