With cashier-less checkout, retailers should be careful what they wish for

As the battle for cashier-less stores rages on — with Amazon Go's one-store trial pushing Microsoft and Walmart to explore a mobile cart-based system to ditch associates at checkout — it's worth questioning whether an employee-less checkout system is something that retailers should truly want. Fully cashier-less efforts should fall into the "be careful what you wish for" category.

The challengers for cashier-less checkout are not solely technological, although the tech hurdles are substantial. Anyone remember JCPenney's failed effort to fuel cashier-less checkout via RFID?

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