Go analog.
A mechanical lock vendor makes a mistake, one series of locks break or can be unlocked. Criminals still have to find them.

A "smart" lock vendor makes a mistake, all locks are unlocked or broken. Criminals can compromise them remotely, with full location available.

@beyondmachines1 What does he do when the power goes out?
@suedorazio He lights a candle and reads a book. Everything else works more or less as before.
@beyondmachines1
I think I misunderstood the post so it threw me off.