Lack of reality in fantasy novels

There are a lot of books that completely gloss over the realities that keep them a float. You don't see the support staff of people that make the paranormal businesses run. Do you see there dude washing dishes in the vampire night club? Is he a vampire? Plus all the witches in most novels are eternally prepared. You never see the witch going out into the middle of the woods trying to catch bats to get blood for the spell or something. Most pagans we know can't remember if they need to bring pop with them. And with werewolves do they ever piss on the furniture because they are trying to mark it as theirs? Do demons sleep if they stay on the mortal plan to long? I wish more authors addressed these problems.