You can't pick and choose "Not a real scotsman" since 99% of users will be on bigcorp 2FA that does it in most ass-backwards way possible. 2FA as mobile apps l

You can't pick and choose "Not a real scotsman" since 99% of users will be on bigcorp 2FA that does it in most ass-backwards way possible. 2FA as mobile apps locked to hardware is not going to go away without 2FA being replaced by something else.