if we had a standardized way to deliver packages like we do mail (the heavily regulated mailbox!) this would not be a problem, it's a phenomenal waste of human effort to navigate this uniquely for every location

it's not like a doorman where there's useful social interaction

I have a PO Box (I do not have a mailbox so the city gives me a PO box for free). A kind human gets my packages from the back and hands them to me. It's great and efficient. The only inconvenience is the hours are a little narrow.