If they keep the same restrictions and penalties in place for keeping confidentiality,
and that nobody may open mail except for the recipient, which is not the case for pkgs sent by
Fed Ex or UPS, then sure, maybe go for it. Yet what next, privatizing Libraries?
Many of the safeguards in place were implemented at inception by Benjamin Franklin, because he'd been witness to the corrupt practices as Postmaster General for the British Colonies; and designed a
system specifically making it unlawful for anyone other than the recipient of Mail to open it.