I'm reminded of the upper-level Narrative Writing class I took in college and most of the class was English majors writing literary fiction of the "grad student has affair with lonely professor" genre *eyeroll* and one girl wrote a perfectly ordinary reasonable urban fantasy vampire story. Cue all the English majors telling her she needed to explicitly tell the reader Basic Vampire Tropes like "vampires can't go out in the sun" and so on. I took her aside and told her to ignore them because they didn't know the genre and its baseline tropes!