Just the other day, I tried to order a root beer at a taco bell and the guy said they didn't have it, did I want a dr pepper instead. I was speechless for a second because it was so baffling that he thought that was the closest replacement.
Then he listed the other options and I got a Baja blast, not because it's the closest thing to root beer but because hearing that one reminded me that I don't really care that they don't carry root beer.
Though still, wtf @ them not carrying root beer.