> If you cover up my peephole or hide yourself so that I can't recognize you, why would I even let you know I'm home? Even if you tell me who you are, shouldn't

> If you cover up my peephole or hide yourself so that I can't recognize you, why would I even let you know I'm home? Even if you tell me who you are, shouldn't I be worried that someone is impersonating you? Perhaps… but if the culture changes and _everyone_ starts covering the peephole, regardless of their intentions, you'll eventually stop looking because you know it's pointless. That doesn't necessarily mean you'll just open your door willy-nilly, it just means you'll come up with some alternative way of having your visitors prove their unmaliciousness.