Most people honestly don't care. Also, my name is google-able and some "white pages" style sites still list my old phone number, so I could verify my identity

Most people honestly don't care. Also, my name is google-able and some "white pages" style sites still list my old phone number, so I could verify my identity in other ways. You'd be surprised what people will do if you talk them into it, lots of people wouldn't hesitate to give their own credentials up, they're not going to take issue giving a 2fa code for something they're not in the process of signing into. This isn't a silicon valley area code or any other area where people are tech-savvy, I'd wager there's a 99% chance that whoever registers the number could be persuaded. I can literally have my family with the same (rare) last name meet them face to face.