It will not take long terms for bitcoin to become mainstream, if every other day we read this kind of implementation.Adaption is real indeed, hope more integration is to be done for convenience and ease of transaction.
It's a big dream, and I am fully supporting more merchant adoption, but people here seem to be overly bullish on everything they read. I'm strongly of believe that despite all the cheering for adoption, Bitcoin isn't being utilized much to pay for the goods offered by merchants. It will require additional discounts to tempt people to use their coins, which is something Coincheck seems to understand.
Bitcoin is too precious to be spent similar to how people usually spend their dollars and whatnot. On top of that, the fees merchants save by not processing the payments through Visa/Mastercard (which are usually 2-3% per transaction) should largely be given as discount to those paying with Bitcoin. As long as people are being given discounts, they're open to spend Bitcoin. The incentive has to be there.