Because it's a lot more convenient, for the customer to just carry their cell and scan a QR code to pay, and a lot more convenient and cheaper for a small seller to just print a paper showing a QR code. Yeah for sure there are security issues (e.g. thieves changing the QR code pic so the money goes into another account) but most people out there put more value in that convenience. Plus they are a lot cheaper than cc.
Personal bank to bank transactions, at least in Canada, still involves a lot of trouble.
Personal bank to bank transactions, at least in Canada, still involves a lot of trouble.