A) Clerk warehouse model:
Stores can allow shoppers to browse through aisles of display items, sample items, boxes, or whatever else causes them to feel like a consumer, take tickets for what they want, then bring them to a counter.
After payment is received, someone else comes out from a secured, monitored area with all your items in a cart.
It wouldn't be too difficult to develop a system to allow people to visually browse for and select meat and produce items.
B) Strict club model:
Store is not open to the general public, but club members only.
You can't be club member if you are under 18 or don't have a provable source of income. If you violate the club's code of conduct, your access is revoked.
Entry is strictly controlled. You can't enter the facility without proof of membership. All purchases verified upon exit.
