In the United States #Amazon has a contract with USPS, the national mail carrier. Last mile deliveries are performed by USPS, but not by regular postpersons. This status quirk enables Sunday/holiday deliveries that aren’t done by full-status postpersons.

On the other hand these Amazon-contracted sub-postpersons aren’t trusted with the postal key, a sesame to access mailboxes and package rooms in residential buildings throughout the city of New York.

In my building, this leads to Amazon packages being left in the hall, and apparently there has been enough package theft reports that the management company had to put up signs urging Amazon delivery people not to leave them the hall, but I believe they are paid way too low (as sub-postpersons) to comply with these rules that wouldn’t be needed if people didn’t order on Amazon in the first place.

CQFD.