I can see that, and I usually just go with the flow to avoid a conflict.
The part that is pretty messed up, is that they’d rather pay some loser an hourly wage, plus all of the associated costs (workers comp, social security, benefits, etc) than just put in some cameras.
If it’s such a huge deal, just re-design the stores so customers have to go directly outside after leaving the cash register with their goods, problem solved.
It really doesn’t make sense to have some loser checking receipts.