So why don't they send a person to follow me around, noting down specifics like what clothing I look at and how many seconds I take to poop?
Because this would be creepy
But since they're doing it with invisible technology that most people don't know about, it's okay, right?
Wrong.
Furthermore, just as when the government does it, there is a qualitative, not merely quantitative difference between individualized data collection and total aggregation. It's legal for the cops to tail a suspect. IT's not legal for the cops to put a tracking device on everybody's car just in case.
And finally, a business may legally be able to track me in their own store, but where is my assurance that those data are not shared with other businesses, ones that I may not have entered?
