It might be only my bubble (of non-tech-savvy people), but recently I started to use QR code to share my WiFi and there was never such friction you described. I don't do it with a printed out image, but my phone has an option to share the WiFi via QR code. Also, modern phones have a direct button from the WiFi connection screen to directly scan a QR and connect to WiFi... This is a thing... and it's easier to use it as typing `ShinyTortoise78`...