So, you are suggesting that if we have a class of 100 people, and we want to measure their height, we should just order them by length, and then the tallest one

So, you are suggesting that if we have a class of 100 people, and we want to measure their height, we should just order them by length, and then the tallest one we call 2.1 meters, the one in the middle 1.8, and the smallest one 1.5, no matter how tall they actually are? Wouldn't it be better if we measure their actual size?