In China, you can’t exist without a smartphone, because for all existential things you have to do (paying bills, buying tickets etc.) , you are forced to use the almighty wechat app. Smartphones are a tool to manipulate and to spy on the population. It is a tool utilized by the ruling class, to control the masses. I hate the future and I hate “progress”.
My go to answer is to say that I don’t have a mobile phone. Actually, I have one, but it’s only for personal contacts, not for institutions. When a clerk asks me for my phone number, I answer: sure, give me your phone number, I’ll text you my contact.
Same for administrations and my employer: my boss has my phone numbers but not HR in my company.
The only institution that has my phone number is my bank, and i’m seriously considering using an alternate authentication method for 2FA at my bank.
If enough of us do that, it won’t happen.