You asked what laws stopped them delivering mail to rural locations. You can't deliver mail anywhere, rural or otherwise, if you can't use the mailbox when you get there. That's the law you were asking about.
> Also the reference is what looks to be on some persons blog post.
The same laws I described, along with pricing. While the laws don't directly prohibit private delivery to those areas, they greatly reduce the economic incentive to do so by (1) prohibiting delivery to regular mailboxes and, (2) allowing USPS to charge such low rates so as to lose money on every delivery (no one can compete with that).
It’s a critical service. No one should be allowed to profit off of critical services.
Is there an argument to be made that a privatized version could run better? Not unless it gets to leverage people’s need of their mail next to its own greedy need for profit.
https://www.cato.org/publications/tax-budget-bulletin/privat...