The good thing about passwords is that it just depend on your mind. You can travel through any country with hostile customs with empty pockets. No one can get your "authentication device" and there is not even a proof that you have an account on any website. Or that you don't have multiple of them.
Seriously, all the people of my parents generation have a physical book with account names and passwords in it. You keep it in a safe place, and nobody can hack it remotely.
Plus, should your heirs or caretakers need to access it, it's all there in plain text for them.
Other than a few web forums, I don't use my phone for anything that requires a password. Certainly not for email, banking, or anything that involves personal data, money, or business. A lot of stuff, I don't do on my desktop either.
Anything connected to the internet is insecure. No, it's not as convenient to do things by phone or paper mail, but I value security more than convenience.