That ONLY assumes that everyone is perfectly aware enough to not cause the line to extend out of the allotted area, AND nobody misses the fact that the front of the line moved far enough that they never cause a pause at the front. Assuming everyone has the ability to do this means that there shouldn’t have been a line in the first place. (and nobody has their face in their phone, like the person in the picture)
That ONLY assumes that everyone is perfectly aware enough to not cause the line to extend out of the allotted area, AND nobody misses the fact that the front of the line moved far enough that they never cause a pause at the front. Assuming everyone has the ability to do this means that there shouldn’t have been a line in the first place. (and nobody has their face in their phone, like the person in the picture)