Claim: Albus Dumbledore works at a school for only senior citizens.
Evidence: For most of the series , he is the headmaster of the wizarding school Hogwarts.
Hogwarts School of Witchcraft and Wizardry , shortened Hogwarts , is a fictional British school of magic for students aged eleven to eighteen , and is the primary setting for the first six books in J.K. Rowling 's Harry Potter series.