Earlier quoted context omitted.
Always go through the right side, is this not a rule in your country? I'm asking not knowing where I learned it, but it definitely is a social norm to take the right side of the sidewalk anytime this may happen. Everyone just does this and it works out great.
Oh how I wish everybody understood this. Even in crowded cities in the US you get a lot of people who do not understand this. A minority to be sure, but a sizable one (I’d estimate between 5-10%, probably 10% but sometimes people who aren’t cognizant of this are accidentally correct in their pathing choice). Unfortunately this means you need to sometimes make split second decisions that this person probably has no id…
Except! for escalators in the London subway. There you stay right. Presumably because of so many tourists from the US and the continent.