I despise the cashierless checkouts too, however, the recent advent of scan-as-you-shop options here in UK(Tescos and Sainsburys have it) means that I walk into the store, put items directly into my own bags that I brought with me from home, scanning each as I put it into the bag, and then at the end I walk up to one of many terminals(there's never any queue), return the handset, pay with card and literally walk out. It was transformative to my shopping experience(as in - made it a lot better).