Privacy advocates got access to Locate X, a phone tracking tool which multiple U.S. agencies have bought access to, and showed me and other journalists exactly what it was capable of. Tracking a phone from one state to another to an abortion clinic. Multiple places of worship. A school. Following a likely juror to a residence. And all of this tracking is possible without a warrant, and instead just a few clicks of a mouse.
Or, you know, let the gov work for you, not against you, & fully expect people to get jailed if they track you.
It’s a matter of perspective what the minimum standard should be.
Especially when a personal device like a phone is basically necessary for a normal life and even public services.