Most users are not educated enough It's not to do with education, that's just another form of victim blaming. The QR code is not the focus of the users' attent

Most users are not educated enough It's not to do with education, that's just another form of victim blaming. The QR code is not the focus of the users' attention, they are trying to do some other task (parking, or whatever) and the QR code is just another irritant getting in their way. If you could magically 'educate' people to distrust everything in their everyday life, nothing would ever get done.