Without much more difficulty they could automate the whole process:
...
Shoppers wait in the front of the store in an expanded deli area. No checkout, just swipe your credit card and out the door. No more navigating around idiots in scooters. No more shoplifting. No more congested isles.
This won't happen. Stores put in a lot of work to their layout and design in order to get you to walk around. That's how they get you to browse their inventory and buy things you didn't think you needed. These may be inefficiencies to you, but it's profit to the stores, and would be suicide for them to change. You're thinking of some future, automated factory-store that wouldn't really be economically viable for people just picking up a handful of products.
As just one example of where money would be better spent, and yes it's a pet peeve of mine, is installing a guard rail in the median of the Fairfax County Parkway. There are a handful of deaths from head-on collisions every year, and it would cost only $10 million to install a guardrail.
It costs $10 million to install a guardrail?
Life would be so much easier if we could just look at the source code. -- Dave Olson