Maybe if people could earn £15 an hour burger flipping in Burger KingsIt's the plural of Tesco, sort of like people is the plural of person.
Maybe if people could earn £15 an hour microwaving in Subways
Maybe if people could earn £15 an hour shelf-stacking in Poundlands
Well, I suppose a plural works, but it's a strange way of saying it
Ahem Tesco's
That would be "belonging to Tesco", which wouldn't be right