Isn't it, though? I mean this as a genuine question. The alternatives are to either buy a safe or to have tons of cash in your register at the end of every day, so I could honestly see banks getting plenty of business for this purpose, but maybe I'm wrong about that.
I can't drink alcohol for medical reasons. It interacts badly with one of my prescriptions. It's really weird how often I have to tell people about it. Nobody really pressures me after I say "medical reasons", of course... but I'm very familiar with that confusion people get.