How sad.
They could instead, go to MULTIPLE door-to-door deliveries per day.
This would INCREASE the time required, causing a shift to greater hiring, and increased overall employment. Then? More parents could buy cars, eat out and send their kids to college.
You see, the government is NOT a private business, and it does not "lose" money like a corporation, no matter how many MBA's it takes to screw-over a light bulb. In fact, "losing" more money on more postal service and more postal workers means MORE economic long-term gain, overall. This includes those private businesses that need customers. But short-term, zero-sum-game trained business management thinking just wants to eliminate workforce competition by public sector employment, and to create an extractive revenue model out of postal service.
I might remind you that it is postal service that was historically considered one of the foundation pillars for the creation of a nation, as the concept emerged in the late 18th century. You can't really claim to be at all patriotic, if you advocate the national abandonment of infrastructure to profiteers.