Where is the mileage graph/mileage legend located in the maps that "Find My" uses?

When I use "Find My" to locate a friend, the map that comes up does not have any kind of a mileage indicator available that I can find. On any normal mapping software, there is usually a legend that tells you that, for example, 1 inches equals 50 miles, or whatever. Why doesn't Apple have enough common sense to include this basic feature in its software? If it is there, my apologies and WHERE THE HE** IS IT?????? And if it does exist, why is it so ****** hard to locate?

By the way, Google maps offers this basic feature. So does literally every other mapping program available on the internet today.