HN rarely does humor, but when it does, it really cuts deep.
Can you really expect a typical person - including the tech-savvy ones - to keep a hastily written piece of paper for a decade or more, without losing it? My code card is clocking on a decade, I needed it only once (so far), and it's only pure luck that, in all those years, I haven't accidentally destroyed it or thrown it away.
Also: it only recently became apparent just how bad it is to lose access to your Google account. Most tech-savvy people I know don't even realize how many things in their lives are gated by that little login form. Non-tech-savvy folks? Maybe they'll figure it out in a decade, after enough people became thrust into poverty for the lack of Google 2FA recovery codes - enough many that it's as boring news story as car accidents.