Walmart used to only have the old person greeting at the front as studies showed that having someone making eye contact with a potential thief will scare off a large amount of them.
On Regent it used to be like that until the last year or so where now they have a security guard checking bags and keeping an eye. I know that I used to see a lot of people who would come in from downtown and would run out with bottles of hairspray, mouthwash , whatever other solvents they could get their hands on with zero regards.