Worldbuilding
Local superstition gets interesting when it stops being folklore and starts becoming routine.
The best worldbuilding detail is often not the old tale itself, but the habits it leaves behind. A door left unpainted. A name nobody uses after dark. A job that quietly goes unclaimed on a certain day because everyone knows better, even if nobody can explain why anymore.
That sort of thing feels lived in. It tells you how people move through a place, what they avoid without thinking, and which fears have become practical. The superstition matters, but the behaviour it produces matters more.
The best worldbuilding detail is often not the old tale itself, but the habits it leaves behind. A door left unpainted. A name nobody uses after dark. A job that quietly goes unclaimed on a certain day because everyone knows better, even if nobody can explain why anymore.
That sort of thing feels lived in. It tells you how people move through a place, what they avoid without thinking, and which fears have become practical. The superstition matters, but the behaviour it produces matters more.