[account42]

It's true that keys are mostly there to deal with minor bad actors and don't do much against determined adversaries. They are however not much of an obstacle to authorized persons which is why we use them.

You also may notice that in most civilized countries we do stop at somewhat weak keys and glass windows and don't bother with fortifying each house to withstand a full on assault from a criminal organization. That's because this will have a very high cost and we are better off dealing with criminals in other ways so this lack of protection is not a real concern.