In China payments via QR codes is quite popular with WeChat and Alipay.
Alot of businesses such as barbers do not take card payments in the UK, but if Bank transfers were easy, they might take these.
I was thinking allowing QR codes / PAYM or NFC to facilitate a faster payment into a Monzo business account ala Monzo.Me but it would run over faster payments. If the business wanted they could pay the TX fees for stripe and take cards.