Looking back over the street scenes in my Uptown contact sheets from the mid-1970s, I see hundreds of little bodegas like this one, but not supermarkets as we know them today. Note that this was at the dawn of the age of barcodes on products and scanners in checkout lines. Wikipedia says the first UPC code on a grocery store product was on a pack of Wrigley gum.  Before UPC codes, checking out at a grocery store took much longer. Hence, the positioning of magazines in racks near the cash register. This young lady was more than happy to have her picture taken, but the people in the background don’t look happy about the slight delay.