It’s one critical factor that, because it’s a number is easy to use as a filter.
I don’t know about “most of the men in the world” being 5’5". It may be an average if you count a lot of developing countries with poor nutrition. But, among developed countries it’s a lot more than that. Even Japan, which is known for smaller people, has 172 cm (5’7.5") as the average.
It’s one critical factor that, because it’s a number is easy to use as a filter.
I don’t know about “most of the men in the world” being 5’5". It may be an average if you count a lot of developing countries with poor nutrition. But, among developed countries it’s a lot more than that. Even Japan, which is known for smaller people, has 172 cm (5’7.5") as the average.
The average person lives in a developing country with poor nutrition.
And?