Look at how many elevators have the ground floor as G, and then the second floor is 1. It already happens a lot in lots of places in the world. Of course, it le

Look at how many elevators have the ground floor as G, and then the second floor is 1. It already happens a lot in lots of places in the world. Of course, it levels out if the building excludes unlucky numbers, like 13 in North America or 4 in China.