One of the things which I was struck by was how unseriously they appeared to view their role in modern life. People were generally very casual about the need and were especially uninterested in anything which required them to work with outside parties.
My suggestion was that they consider a protocol where trusted civic authorities could be allowed to confirm someone's identity, which sounds like it would be useful for this case: let the person initiate a mediated reset flow where someone like a librarian, police officer, etc. could authenticate in their official capacity and check a box saying that they've confirmed the photo ID for the person standing in front of them. Most of the benefits from MFA are preventing things like phishing attacks which are also stymied by limiting it to people in your geographic area, although you might want to disable this for high-risk people enrolled in Google's Advanced Protection Program.