Because it has a special place, i.e. it’s leveled with the ground, so anything above it you need to climb up, anything below it you need to climb down.
Think of it this way, floor is a synonym with level, if I asked you to tell me which level the ground is at the only logical answer is 0, if you say the ground is at level 1 that implies that the first basement is level 0 which sounds ridiculous.
If you’re in an elevator that has the numbers from -5 to 15, where is the only logical place for the ground to be at?
So to preface this, it’s all arbitrary so there isn’t a right or wrong as long as it’s consistent.
The question might be better phrased this way: are we numbering distance or counting spaces?
If the year is 2024, what century is it? How about if the year is 700? How about if the year is "-700” (700 BCE)? Now which century is the zero century? 🤔 It doesn’t make sense to ask I don’t think.
So really the US System counts the spaces up, then the spaces down as stories. Ground is the same as 1, and Basement is same as -1. I have never ever seen a building (or elevator) with a number line in it or with negative numbers. NOW if you put altitude in the elevator in, say, 10ft increments or so, I would have no choice but to agree with your strange European ways.
Because it has a special place, i.e. it’s leveled with the ground, so anything above it you need to climb up, anything below it you need to climb down.
Think of it this way, floor is a synonym with level, if I asked you to tell me which level the ground is at the only logical answer is 0, if you say the ground is at level 1 that implies that the first basement is level 0 which sounds ridiculous.
If you’re in an elevator that has the numbers from -5 to 15, where is the only logical place for the ground to be at?
So to preface this, it’s all arbitrary so there isn’t a right or wrong as long as it’s consistent.
The question might be better phrased this way: are we numbering distance or counting spaces?
If the year is 2024, what century is it? How about if the year is 700? How about if the year is "-700” (700 BCE)? Now which century is the zero century? 🤔 It doesn’t make sense to ask I don’t think.
So really the US System counts the spaces up, then the spaces down as stories. Ground is the same as 1, and Basement is same as -1. I have never ever seen a building (or elevator) with a number line in it or with negative numbers. NOW if you put altitude in the elevator in, say, 10ft increments or so, I would have no choice but to agree with your strange European ways.
No storey is special, no one is special.