How do stores with self-check out lanes ensure that all products bought are accounted for?

Question

Other than an employee or two standing by, it seems to be riding on customer trust. Wouldn’t a company want to only have cashier lanes, so they can ensure that all products taken from a store are bought fairly?

In: 25

Answer 1

The common answer is that the costs saved on a cashier, make up for the cost of stolen goods.

The reality is that cashiers dont prevent shoplifting anyway.
A shoplifter who’s willing to risk cheating at the self-checkout is also willing to stuf some items down their parts before walking past a cashier.