I never gave my last one a key and she lived here off/on for 10 years. Granted when she was doing meth she could fit through my Doggie door. Robin is much more financially off as I am.
Besides, it's one of those locks that are easy to rekey anyway, if things go sideways, which I doubt.
Robin has a lot to do with keeping me grounded, Good Women.
Yes, I voted the prostitution thing, too.