I'm sure it exists in theory but I've never lived somewhere with a system more advanced than "fold the door mat over it". And no home owner I know has a giant t

I'm sure it exists in theory but I've never lived somewhere with a system more advanced than "fold the door mat over it". And no home owner I know has a giant treasure chest on the front porch but if they did they'd still need some way to allow delivery persons to unlock it. Best defense to theft seems to be paying a lot of rent to live in a nice neighborhood. If it's an expensive package they'll usually require a signature which means I'll have it delivered to my workplace. I think Amazon probably doesn't want to rely on people having lots of money and accommodating employers.