Onion Routing for Snail Mail

I have an idea and a domain (like any good side project, buying the domain first was key ¯\_(ツ)_/¯)

The system will work by instead of using nodes, it uses people as those nodes. Then these nodes are the hops that the snail mail takes.

Example: Sending a letter (3 hops)

1. Signs up and pays to have three hops (those hops are actually people who are paid to receive the mail and then forward it on)

2. Letter is sent, hits first node.

3. User gets the next address from the system, then sends it on to next hop/node and so on.

4. Then when a letter reaches its destination it has not gone directly to the receiver but through an indirect path.

There would be some trust a user would put into letting it take this path. And a way of verifying the letter/parcel wasn't tampered with.