The water and sewage pipes work due to gravity and pumps and aren’t addressable. You pump a bunch of water to a water tank above everything else and then let it

The water and sewage pipes work due to gravity and pumps and aren’t addressable. You pump a bunch of water to a water tank above everything else and then let it flow down. The water just blindly flows down. The water pipe leading to your house is very narrow (0.5 or 0.75 inches). The sewer pipe is bigger but you aren’t going to fit a big package through it. Tree roots growing through sewer pipes is a constant problem. The roads are a form of a pipe. It just happens to be above ground and for people and general goods. A tunnel is just a pipe. The automation of package delivery sounds nice but is orthogonal to pipes. You can probably accomplish that with automated delivery vehicles who can dock to a port on your house. No need for packaging.