by the amount of pressure and demands I get to have one, it doesn't look like people are doing that voluntarily

you're deluded to think you can prevent tracking and surveillance. the devices are made for that

technically, I own a smartphone or two. the one with my simcard to get SMS is a Neo Freerunner, older than the first iPhone. it's not what people would call a smartphone by modern standards, and I only use it to receive SMS at home, because some services I have been forced to use still believe that sending a 6-digit number by SMS is a security add.

the other "smartphone" I own is a samsung galaxy running replicant. it's simcard interface has long been broken. occasionally, when its charged, it's plays camera and pocket watch. I tried it as a phone briefly before the simcard interface broke, and I quickly found that android-based systems were not for me.

it's getting increasingly difficult to interact with banks and governments and whatnot without carrying a tracking device running remotely-controlled software. I've won lawsuits in justice over banking services I hired that worked on the web on browsers of my choice, and that are being discontinued, demanding that I buy and carry an ankle tracking device for pockets of their choice and hire a surveillance service. the bank seems to have chosen to disregard the court order, and a number of services I used to rely on are not even available at branches, only with apps. but surely that's all absolutely voluntary and net positive, you say.