Well yeah, obviously some leeway should be given to the elderly and the disabled, but if you've got two fully functioning legs and you're in somebody's way, just move to the side. This one can apply to traffic as well. I hate when I'm trying to cross the street on my bike and some idiot is waiting at the red light stopped clear across the crosswalk. Or when somebody's waiting to pull into traffic and they're on the sidewalk. God I hate that shit.