USPS does not deliver letter or parcel mail to physical addresses (homes and businesses) in my community. They will return an overseas shipment if it does not include a local PO Box number, rather than expend the effort to reference the street address with the box number. So, I don't use the USPS....ever. I ship everything with FedEx or UPS. I use email prolifically. I pay bills online.
Want to see USPS go away? Just help them continue to fail by avoiding business with this mediocre example of government bureaucratic nonsense. Think a single-payer goverment healthcare program will be any different? Think again.