Yes, he’s trying to stay undercover so he doesn’t endanger those around him while investigating the Black Organization. Of course after twenty-five plus years of this, the Black Organization endangers those around him on a regular basis anyway so he’s coasting on inertia with the secret identity thing.
Hmm, come to think of it, Shinichi Kudou of Detective Conan/Case Closed is the child of a bestselling author and award winning actress and would live in a mansion if he weren’t pretending to be someone else.
Don’t trust this guy from Tongus.