Imagine being in one the richest and most "advance" city in the richest country in the world...
Ironically, if you are old enough, this is actually how stores were at least 40+ years ago. Everything was at the back, and you'd fill out some forms and pass it to a clerk to help fetch them for you and then ring you up.
Wal-Mart was one of the pioneers of the "self-service" concept, they didn't think theft/"shrinkage" would be a big problem. I guess they had a good run.
That being said, Wal-Mart has always been a big supporter of technology, so this might spur some kind of service robot adoption
