> Do you have the expectation of privacy in a store?
Yes, absolutely. I don't have an expectation of having as much privacy as I do when in a private residence with the blinds closed, but I do have an expectation of some forms of privacy.
* The store will not perform a full strip-search of my person upon entering.
* The store will not place a GPS tracker on me as I leave, to determine where I live.
* The store will not have a team of employees with clipboards follow me at all times, making notes of my location within the store.
* The store will not keep a record of my eye movements, correlated against which products are being glanced at.
The problem is that, as technology has advanced, some forms of privacy that used to be protected by impracticality of implementation no longer have that protection. For example:
* The store will keep video record of my visit for a few weeks at the most.
* The store will not analyze video records outside of suspected shoplifting.
* Record of previous purchases is limited to the cashier's memory.
Privacy is not a binary yes/no decision. As technology improves, forms of privacy that were previously protected by limitations of implementation must be protected through other means.