You seem to be under the illusion that state-issued id cards and even passports are secure.
People are able to get them simply by showing a birth certificate, which is basically a piece of paper signed and stamped by a town official decades ago. Which comes down to trusting underpaid, overworked people (and possibly underqualified political appointees) who work at the local registry of births or drivers licensing agency or passport office.
Considering how important email is for peoples' lives nowadays (especially if it provides access to financial information), a state issued id may be a weaker link.
Are you able to detect forged passports and drivers licences? Will your business have insurance in case you make a mistake and reset the password for the wrong person?
Have you ever worked in an in-person customer-facing role before? You will encounter angry, sometimes aggressive people. If you're in the US, then expect some of them may be armed.