Whether it is blockchain or not, they will need infrastructure to process electronic payments. The last time I went to Japan I noticed a real lack of payment in

Whether it is blockchain or not, they will need infrastructure to process electronic payments. The last time I went to Japan I noticed a real lack of payment infrastructure that is common in the US (this may have changed in the past few years). In the US we have vending machines, subway ticket kiosks, parking meters all with credit card slots. Also, nearly every business accepts credit cards, from restaurants, hotels, and stores to farmers markets. When I stayed at a hotel in Japan I had to pay upfront in cash, pay for nearly every meal in cash, carry coins for vending machines, taxis and subways. At the time these were all things I would have used a card for in the US. At the very least they will have to get this infrastructure in place first before moving away from cash.