All of the world is an adventure, and Aunt Queen, as she likes people to call her, has experienced alot of it. Old age has confined her to her home, and curio shop where she collects and sells cameos, books, and antiques.
A culture must hide its hands in the arm of their clothing as a sign of respect and peace. When approaching somebody you show them respect by crossing your arms and hiding the hands in the shirt sleeves. Nobody worries about hidden knives and such, it is the threat of magic that this custom was created to prevent.