Wal-Mart Push Use of VR for Training

Would lead to one of the largest uses of VR, in this case for training.  Serious effort, making everyone take notice of the possibilities.   What experiments have been done of retail training with VR to show improvements?

Walmart is putting 17,000 VR headsets in its US stores for training
By Adi Robertson   @thedextriarchy in theVerge

Walmart is going to send Oculus Go virtual reality headsets to every US branch of its stores, expanding a VR-based employee training system it announced last year. The company announced today that it will ship four headsets to every Walmart Supercenter and two to every neighborhood market and discount store, meaning around 4,700 US locations (not counting Sam’s Club stores and smaller centers like campus stores) will receive them. They start shipping next month, and Walmart says that over 17,000 headsets will be in stores by the end of the year. .... "