[koolba]

> I have multiple yubikeys that are as hard to lose or break as a house key.

Unfortunately, hard and easy are interchangeable in this sentence. And if you lose your house key you can always call a locksmith or just break a window to get inside.

Even if you don’t have identification on you, if the cops show up you can have your neighbors vouch for you (assuming the cops don’t already personally know you).

[sjf]

It's not the same though. You can never do the equivalent of locking your yubikey inside the house.