Privatizing is a joke. There are routes ,especially rural, that would be unprofitable. A private company would find a way to weasel out of them. Then they would cut wages and try to hire illegals .
UPS is a private mail company that was formed to pick off the most profitable deliveries. They are not there to supply a service. Our mail service in America is pretty good. If it was privatized we would regret it. Then of course ,if we privatized ,the companies would be bought up until there was a monopoly.Can you imagine how powerful that company would be? How many times do corporations have to exploit us before we figure out they are not interested in fair wages and treating their workers well?