We have B.J.'s Wholesale Club in my area...central NY State. In every B.J.'s I've shopped at for over 40 years, no matter where I've been, you always have to give your receipt to the person at the exit, so they can check off the number of items in your cart.
We have very little crime where I live, but even the Walmart here has shut down its self-checkout aisles, and closed every other machine in their larger self-checkout area.
The local Marketside 32 (Price Chopper) store has two sections for self-checkout, but they usually only have one of them open, even if there are lines.
BJs, Costco, and Sam’s Club are membership stores that can be utilized only by members who purchase an annual membership and show said membership card to enter, and these stores are otherwise NOT OPEN TO THE GENERAL PUBLIC. ... period ...
There’s a laundry list of contractual “rules” members are required to follow to maintain their membership, and showing their card to enter and their receipt to exit are a couple of those rules ...
COSTCO has checkers looking at your cart & receipt at the exit. ALWAYS HAS -—FOR YEARS