This concept goes so well in a spelljammer like setting. Imagine the Laughing Beholder with large Luigi doing this. "Okay, what sphere are you from again? Okay, next I need your planet, then your species, then your age."

EDIT:

Noncombat or low combat adventure idea that just came to me based on this. A group of grifters has conned Large Luigi or your version of this bar owner by posing as an interplanetary or interplanes alcohol enforcement agency. They pulled a fake sting and made off with something precious of the innkeepers as a fine. The party either hears this from the barkeep when they order or from the other patrons who are fed-up with the arcane ID system and long waits on drinks. Only recovering the fine or capturing the grifters can the situation be set right.