And it wont do that completely, ever, for the exact same reason that U-Scan has been present in every major grocery store for over a decade now and yet it still hasnt replaced all of the checkout belts. Because machines break down, or customers fail to understand how to use them, or just plain prefer dealing with other humans rather than machines in the first place.
And because how to scan lettuce and oranges and stuff like that. If I have anything that’s not in a box or bag with one of those scan things on it then I don’t go through the DIY line.