It's about time this contactless payment method was encouraged by the central bank. Handing over your card at the supermarket where the employee sees everything including the security code on the back of the card and then having to sign with a pen that could be infected.
Mercadolibre, with whom I have a love-hate relationship, has been at the forefront of paying by QR and it's surprising that so many banks have been so slow on the initiative.