Often: Using a signature. As in, pen on paper, stuck into an envelope or a fax machine (not a scanner and e-mail, oh no, has to be fax).
Government online services that do exist often have their own authentication scheme (each authority has a separate one), typically "we'll mail you an activation code" (snail mail of course) paired with SMS 2FA after the initial registration.
A proprietary scheme specific to that one bank.
> to your government services
Often: Using a signature. As in, pen on paper, stuck into an envelope or a fax machine (not a scanner and e-mail, oh no, has to be fax).
Government online services that do exist often have their own authentication scheme (each authority has a separate one), typically "we'll mail you an activation code" (snail mail of course) paired with SMS 2FA after the initial registration.