Whenever people are suggesting adding a QR somewhere (ad, in-app, etc) I always advocate for showing the short URL too. But about half the time they insist that

Whenever people are suggesting adding a QR somewhere (ad, in-app, etc) I always advocate for showing the short URL too. But about half the time they insist that "everyone knows how to scan a QR code". They clearly haven't tried to ask a few people to scan a QR code to see how easily most people do it.