Making deliveries without a human is easy with custom-designed delivery vehicles and ahead of time warning about the exact hour of delivery, combined with perso

Making deliveries without a human is easy with custom-designed delivery vehicles and ahead of time warning about the exact hour of delivery, combined with personal passwords sent by email that unlock a compartment. People will probably even prefer it that way. I don't see a reason why humans need to be involved in the actual rounds once the driver automation aspect is solved.