While I agree that re-keying may be necessary, and restricting key
distribution is prudent, I wonder if it might also be useful to
investigate different door hardware. It seems unintuitive to me that it
would always be necessary to re-lock the door after unlocking it.
I would imagine there must be door hardware that allows for only a
momentary unlocking action, eliminating the need to re-lock the door.
Has anything like that been investigated? Is there some nuance of doors
that I'm just not understanding?