Oh. Maybe back then. But we don't use phones to make calls any more. Only robots actually call you out of nowhere, so you just turn the ringer for incoming calls off. If you actually need to communicate synchronously, you text the person you want to call first, so you know it's okay to call them, and they know to pick up when you do.
Every once in a while, leave your phone at home when you go somewhere. Every step you take, you can think to yourself "yeah, try to track me now, chumps". Pay cash for all your purchases. Refuse to give real information to anybody. You're a digital phantom now!
The only thing you can't get from a less-trackable non-phone device is cellular network connectivity. And you can sort of get around that with gratis wi-fi connections, if you're careful to de-fingerprint your device. I'm imagining a handheld qubes/tails. It would be nice to have a less-centralized mesh network that explicitly valued peer confidentiality, but apparently there's no profit in it yet.
