Cameras film, people watch. They're not willing to pay more cashiers, they're certainly not willing to pay a bunch of people to stare at cameras all day. Instea

Cameras film, people watch. They're not willing to pay more cashiers, they're certainly not willing to pay a bunch of people to stare at cameras all day. Instead it's zero, one or two people. They have enough on their plate just virtually following visually suspicious people through the store. edit: I include zero because a lot of it is seeing that a "suspicious type" has entered the store, and running to the back room to watch their every move until they leave.