do i understand correctly that this only works if all items in the store get an RFID tag? i don't think that every banana and every tomato will come with an rf

do i understand correctly that this only works if all items in the store get an RFID tag? i don't think that every banana and every tomato will come with an rfid tag, so cashiers at food retailers are probably safe, for now; However they might create a special section in the supermarket reserved for the grocery and have everything else in a section with rfid tags, that would result in fewer jobs as cashiers. however they might have to add people for adding rfid tags to each and every item in the store. Interesting how much every one of these options would cost them.