Paul Farquhar
Legend
That's why D&D leans so heavily into tropes. They are a kind of shorthand that save the DM from having to describe every little detail.Indeed, but to be fair, in a game there can be a fuzzy area about what can or cannot assumed to exist. Like in a typical fantasy game people probably would assume that a town has a tavern and a blacksmith. But a library? Probably a temple or even several, but of which gods?
But it is not a big deal either. If the player accidentally makes a wrong assumption, then the GM can correct them.