Imagine Texas without government schools

I know it is hard to do, but try to imagine living without the U.S. Post Office. Not so hard to do, is it? In the 1960s the U.S. Post Office was the only service that people had to deliver mail and packages. That has all changed. Now we get our important deliveries from UPS and FedEx, and 1 and 2 day deliveries are the norm. Now, our postal worker is just that person that stuffs our mail box (located down the block) with junk mail. How did all of this happen?