>>The worst part is there is no "opt in" either. There is no privacy policy or terms of service that I agree to. My only option is to either pay in cash or not

>>The worst part is there is no "opt in" either. There is no privacy policy or terms of service that I agree to. My only option is to either pay in cash or not shop there. This is true about every store. All credit card companies and vendors work together to collate all of this data easily. Most don't tell you they're doing it. Square at least made you aware of it.