People lose wallets. People lose car keys.
My PaaK car has a backup passphrase to start it. I can be used in a pinch if my phone isn't working. I can't say the same if I lose my car key.
If I go on a long trip I'm likely to bring multiple car keys and multiple payment methods. This is still true if I'm doing PaaK.
> But now we can imagine a bright future where you can lose both, and your normal way to try and get help, all at once!
Still a possibility with cut keys, paper currency, and dumb cell phones. Ever have all of those things in a bag and have that bag stolen?
At least with the PaaK car I have, there's a backup passphrase as well.
As I mentioned elsewhere, I'll trade the slightly worse day maybe once a decade+ (or quite possibly never!) for the convenience every single other day. If I'm smashing my phone every few days I'll probably rethink that strategy. But I'll probably want to change whatever is causing me to smash my phone every few days.
They do, and obviously it's a huge headache. But now we can imagine a bright future where you can lose both, and your normal way to try and get help, all at once!