That model was replaced with the modern grocery store model by Piggly Wiggly!...........A SOUTHERN GROCERY STORE CHAIN!.............
https://en.wikipedia.org/wiki/Piggly_Wiggly
Piggly Wiggly introduced the innovation of allowing customers to go through the store, gathering their goods, thus cutting costs and lowering prices.[2] Losses due to easier shoplifting were more than offset by profits from increased impulse purchasing.