The smartphone is the ultimate tracking device for any nation state to use to monitor its population. I'm surprised they even bother with other forms of surveillance at this point.
And they claim to be democracies!
Do you really think a state actor needs anything else to track you already? We gave up privacy when we all accepted to carry a telescreen in our pockets. Now with palantir, flock, amazon door cameras, &c. there is nowhere to hide, don't blame the government when we sold our souls willingly. The truth is that 99% of people don't give a shit
Most people don't have phones to be tracked, they have them for their other features. Even door cameras are sold on the basis of personal security not public surveillance.
It doesn't help that so many people invoke "conspiracy theories" when you mention this.