They just don't care - they never have enough people working on the tills
I have been in this business for a long time....same as 7/11s....the idea in mid range c store is to make the customer wait in line so they can decide what more to buy:D,Even Carefour has 3 kinds of stores one is supermarket other is medium sized store(dont remember what its called) third is carefour express,I know this at one point I wanted to franchise...but I agree thre management aint brilliant,but they learning slowly but surely,I HOPE!