> When I do it is rarely delivered by USPS. Usually it is UPS or Amazon.
What's funny is that the post office delivers packages for every major shipping service. No shipping services delivers parcels for the USPS.
Anything the major players don't find profitable, and all overflow that they cannot fit in their trucks is given to the post office daily.
Anything the major players don't find profitable
This is to my point. If it isn't profitable to do and they do it anyways, then it is being subsided by someone.