There’s a retail strategy of putting products at your fingertips in the checkout aisle in order to entice you to buy it. Candy right next to you, so you’re munching on it when you leave the store. You feel good, they get money, no additional load on the staff.

This is, effectively, the opposite strategy. Make getting your hands on anything annoying and difficult, increase the number of floor clerks you need to constantly unlock the shelf, and generally make the retail experience slower and more unpleasant.