There's a similar one for adult-rated DVD's or CD's at the major electronics stores. I applied for the same one 3 different times, each time arranging to borrow a friend's child. And every time I lost the job to someone else. I think her son thinks I'm nuts. LOL. Borrowing is acceptable, BTW, as long as I sign a parental consent and proof of age.
Sometimes the child must pay for the soda or gum, so read carefully. Often you're not supposed to be near him at the counter.