"Japan: No Bitcoin Tax, Thousands of Stores to Accept the Cryptocurrency"
article published July, 5, 2017
https://edgylabs.com/2017/07/05/japan-no-bitcoin-tax-stores-accept-cryptocurrency/"AirRegi is a widely used, tablet-based point-of-sale app in Japan. Currently, around 260,000 establishments, stores, and commercial facilities use this proprietary app to accept payments from their clients."
It makes sense that a transition to accept bitcoin would be underway for more US-based stores.
retailers will receive payments using bitcoin when bitcoin is very stable and when retailers know the benefits of having much bitcoin, if bitcoins are still not like that it seems that few retailers are receiving payments using bitcoins.