There are at least three security cameras on this street corner in San Francisco. If I have my phone with me, Google knows exactly where I have been. Once a month Google sends me a link to where I have been in the past month. It is incredibly detailed. How detailed, last November I presented a workshop in a hotel ballroom in Huntington Beach, California. I tend to walk around the room when I teach, Google tracked me pacing back and forth in the room. For months Google sent me traffic alerts for my daily commute, only one problem I last drove to the office May 4, 2015. A couple of months ago, my phone asked me if I would like updates on public transit, and did I prefer busses or trains. I selected trains. Now I get updates on delayed trains.
I am not bothered by this. I do little that I would be embarrassed by others knowing about, nothing that the police state really cares about. If I don't want to be tracked, I need to leave my phone off, and stay away from the cameras.
Do you care if Google or Apple knows where you are?