This exists in most UNIQLOs it's the same mechanism through which the alarm goes off when someone attempts to steal things with the magnetic RFID attached. It'

This exists in most UNIQLOs it's the same mechanism through which the alarm goes off when someone attempts to steal things with the magnetic RFID attached. It's borderline ancient tech. So why is it not applied everywhere? Because stores would rather have you line up and buy stuff from the "impulse aisle" and tip or donate at their PoS (higher rates with an employee glaring at your selection)