So because the majority of users have smartphones, the option for everyone else is "too bad"? I've had my non-smartphone for six years now. It still works, and

So because the majority of users have smartphones, the option for everyone else is "too bad"? I've had my non-smartphone for six years now. It still works, and while I'm sure I'll upgrade to a smartphone one day, I have no urgent desire to do so. Is it really that hard to set up an SMS system as a fallback? I'm still able to use two-factor on my Google account because they offer this solution.