[x] In the west big tech can more or less serve 98% of the population. but there is (approx) 2% of the population who for various reasons are massively uneconomic to serve - mentally, ill, disabled, poor, lacking literacy skills or the wrong language. Hell its probably more than 2%. But the point is Government must serve these people and provide a level playing field. Commercial companies dont have to.
There certainly would be an additional marginal cost, but it would be much, much less than an entity trying to start that from zero.
https://www.dfs.ny.gov/consumers/banking_money/basic_bank_ac...
Do you mean even cheaper and less frills than that?
https://en.wikipedia.org/wiki/United_States_Postal_Savings_S...
Edited to add: Wealthy privileged HN readers would not know this, but poor people who are "unbanked" have to use USPS money orders to pay bills, and the USPS charges a fraction of one percent on money orders. So yes, the USPS is already performing banking functions.
How can it act as both a public service and source of free money? Even if it made a small profit doing so, it would be less than ramping up their most profitable areas and would have an opportunity cost.
(If you mean they should do it purely as a public service, that's a fair point, but you're writing like it's an easy way to improve their financial position, which doesn't make sense.)
Most of the reasons that it isn't profitable relate to problems that the USPS already has to solve as part of their core function. It doesn't make sense for a bank to invest in physical infrastructure in the middle of nowhere, the cost of the building would erase any potential profit. The post office already has a building there though (and staff, etc). A significant amount of the up front expense, as well as a decent chunk of the ongoing expenses, is already going to be spent anyway.
So for these five or six people in rural areas that can't get a bank account, and aren't complete deadbeats, and can't get to a bank as easily as they can get to a post office, the USPS has a cost advantage in serving them. Okay. I just don't see numbers that make this a big source of free money.
In the past USPS has been evaluated as "thing that should make money" which is silly - if it was profitable to run a reliable service in that space the commercial sector would have forced out the government.