Not just that. When self-checkouts were first introduced, the argument was that even with the added shrink, the benefits outweighed the costs of employing an actual person. Now, of course, the shrink rates have no longer made this profitable and shareholders are crying.
Personally, I’m fine with self-checkout since I can bag my own groceries exactly how I want them and without having to interact with anyone. That said, I will not be stopping for anyone to check my receipt and my items. If they don’t want the possibility of shrink, then they shouldn’t have gone this route in the first place.