Creating a QR code is trivial
It depends on if you are dealing with an advanced script-kiddy or someone who is actually IT literate. QR codes are a bit more advanced than normal script-kiddy stuff but would say one has to be IT literate to use one.
Nonsense. Anybody who can run a browser and knows how to "google" can create a QR code.
Just googlling "create a qr code" and clicking on the first link takes you to a web site where you enter whatever text you want. One more click, and there's your QR code.