Electronic money accounts and ability to transfer money. People shouldn’t need to deposit their money at a bank or non governmental entity.
For example, USPS could provide a constitutionally protected, inalienable right (not even if you go to prison) to an electronic money account, and you can send and receive via an email address or phone number. USPS because there are already physical USPS offices all over the country.
No need for government to lend people money via credit card equivalents. Just obviate checking accounts at banks. Banks don’t have a purpose when money is just entries in a database anyway.
Keeping money “safe” is no longer a physical thing to do. If a lender wants incentivize people to deposit money with them, then they have to compete by offering attractive interest rates. But then it will come with the risk of the lender losing your money, like any other investment.