I agree with the sentiment of lack of innovation. The "scan as you shop" was already a thing in Belgium Delhaize supermarket back in 2003/2004. The Tesco checko

I agree with the sentiment of lack of innovation. The "scan as you shop" was already a thing in Belgium Delhaize supermarket back in 2003/2004. The Tesco checkout till takes paper coupons, but won't use your app ones, unless you trick the till into believing you've dropped a paper copy in the slip provided. Often you are stuck waiting for assistance to let you buy, alcohol or painkillers or demagnetise items (including high value food items like steaks).