No retail worker is going to risk their job based on corporate platitudes about learning opportunities. It doesn’t matter if the company is serious, there’s no way for their employees to know, not enough incentive for them to take a risk, and not enough time for the reality of the job to naturally sink in simply by being there.

The best you can hope for is a cranky old timer to tell it like it is Office Space style simply because he doesn’t care about his job. Maaaybe whatever stores are closest to the corporate office will get fatigued enough by the constant stream of white collar workers on field trips that they’ll just start ignoring them and something might be learned by chance. But most are just going to show up for their mandatory floor time, shadow whichever poor sod is trustworthy and energetic enough to be the corporate babysitter, and then return to their desk none the wiser.