More likely, wayyyy at the head is the chokepoint in the infrastructure that is making everyone try to get over at the same time and causing a build up of traffic behind them.
Yes, sometimes it is idiotic drivers, but I find more often than not it is the engineers or the limits of the area the road is built in that add chokepoints that fuck everything over.
“Oh. Everyone wants to take this exit? Make it a short one lane into a red light. That won’t fuck over the highway”