The end game is squeezing margins down until only house thieves are motivated to take such jobs, and either disclaiming responsibility or trying to manage it so few enough people get attacked/robbed/etc by predators signing up to deliver for whatever the ultra-budget-shipping thing is. And of course in the end the whole thing gets automated, but until then the strategy is to squeeze shipping as hard as possible, because employing safe people is part of the margin and it's cheaper if they're a lot more ephemeral.