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Except people call it the "ground" floor which makes sense, not the "zero" floor which does not.



It’s not consistent but I would estimate that “0” buttons are as common as “G” buttons in elevators in Europe - along with -1, -2, etc for basement levels.


0 makes sense when you consider -1 to be the first basement level.


Which also gently introduces children to negative numbers : - )




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