Crypto adoption is have been slow in recent years and many shops are still not aware that there some kind of virtual currency in the online world that can be use in any kind of transactions. This year might be different because the market is bullish due to continues climb of bitcoin and some altcoins. During this uptrend of bitcoin, many merchants and investors might get interested in the cryptocurrencies and the bussiness people might try to use bitcoin as a payment in buying their goods.
Rather than awareness there is no legal support and authorities promote the services. In my country if it gets legal support automatically each and every store will carry its own wallet QR to receive funds, because in recent days I've seen large number of mobile wallets doing the same. The representatives go shop by shop and give a small pad carrying the QR of their respective wallet and explain how transactions were received and how they get notified.