Have you ever been in a crowded venue that is getting out for the night and it looks like the whole crowd is swaying like a wave? I always find that fascinating, even though I hate the experience altogether.
I know what you mean, yes! People sway quite a bit when they walk. They actually have to do calculations that factor that it when they design buildings to determine the amount and the distance between exits. People need a certain amount of space to be able to walk quickly and efficiently so it's important to factor in for fire protection and evacuation