Even Greener Pastures

Alharacas, but you can choose contactless payment as an option in Germany, can't you?

Actually there's one more thing I can think of with regards to QR codes. As many other things, they can also be used as a way to express yourself. For example, one of my friends has a tatoo with the QR code you can see in this clip:



If you scan it, you'll get the message "миру�мир"* which is one of the main messages of the song -

*"peace to the world", lit. "to the world�peace"; in Russian the words "world" and "peace" are homonyms).