While yet another vehicle type that interferes with sidewalk use (sidewalks exist alongside roads specifically for the purpose of supporting pedestrian traffic) may need regulation to address it, but the chaperone rule seems counterproductive.<p>It seems to me that the better rule would be that delivery robots need to be (or, more likely, be carried by) road vehicles, and only transit the sidewalk for a limited distance as necessary to transition from the road to do the destination building.<p>The geographic and numerical restrictions in this regulation might make sense for exceptions to that limited-sidewalk-distance rule, but I can't see a good purpose for the chaperone rule.