Same here. I am even reluctant scanning any QR code and taking me to random web pages connecting my phone - and since phone is an extremely personal device, pratically an ID, so myself - to that place and time. I am not a fan of being traced, surveillanced more than avoidable, especially not fan of triggering it myslef. Giving away additional dat on myself on top of that. No thank you. And this is before considering the system exploiting the vulnerabilities of my device, insted of the other way around shown in the writing. I left a place because of their QR code primary order system. Waiters came around taking order the old fasioned way, but only in the gaps of serving the QR orders. No thank you.