Dumbphones become less of an option lately. The vaccination certificate is on my phone. So are the apps that are mandatory to access my banking. Ao is Authy. Sure, I could carry around a printed-out QR code (how long will that one last?) or switch banks and forget about online banking, and stop using 2FA, just so I can avoid having a smartphone, but eventually, we will see a time when those are no longer options.