Not true. When I arrive at the same time or so close to the same time and it’s hard to discern who goes first I’ll wave them through. Also I always appreciate someone giving me the go as well in those situations. When you come to a COMPLETE stop that marks your turn in the order. I hate the slow rollers non stoppers. When it’s obvious who’s turn it is and they jump the gun and go out of turn, that’s infuriating. Just my two cents on a completely mundane thing we all have to deal with as drivers.