So once they sell those cars, then they shouldn't have those codes? when a customer loses their key and needs a new key made, then what? what about a custom

So once they sell those cars, then they shouldn't have those codes? when a customer loses their key and needs a new key made, then what? what about a customer losing key while he's far away from home or where he purchased his key? people do move you know? how about losing your key when you are out of state? it's one thing to lose a key, it's another to have to wait a day to get a key made and be stranded. iMHO, a better solution would be tracking how often locksmiths request for key codes and have an algorithm that can detect unusual patterns which will then be followed up by human eyes.