Google, Apple, MS et al all track us by our phones and I think you know by now that the NSA, and police can also access that data.
I wouldn't really object if the government knew when I cycled into town, and when I visited friends etc... if it would get my stolen bike back. There could also be a rule that only bikes reported stolen could be logged and alerted, but there could also be benefits if this rule was let slide. For example, popular cycling routes could be studied for prioritising path repairs, or the building of new cycle lanes.
I wouldn't really object if the government knew when I cycled into town, and when I visited friends etc... if it would get my stolen bike back. There could also be a rule that only bikes reported stolen could be logged and alerted, but there could also be benefits if this rule was let slide. For example, popular cycling routes could be studied for prioritising path repairs, or the building of new cycle lanes.