These same people who can’t handle pasting a 6 letter code from an app are also driving multi-ton vehicles on the freeway, one muscle twitch away from massive casualties. Scary. You don’t think that maybe they can learn?
I use Google Authenticator TOTP/HOTP. But when I first started using it, and was switching to a new phone, I learned the hard way that the keys had not been included in my backups. Sorting that out was a royal pain in the butt. Since then I have started ensuring that I have the keys backed up properly. But it’s one of those things that you might not realize until it happens. And it’s why even though I like to use it, I’d still be unlikely to recommend even to my family that they use proper 2FA instead of SMS based ones. Lest they end up permanently locked out of their accounts.