I live in NYC and have never in my life seen a consumer use their phone to scan a QR code in public here. Ever. Anywhere.

Occasionally you'll see one on an ad or something... but the number of people who would ever scan it must be minuscule.

It's just not part of normal life here. At all.

(Employees scan codes on tickets for events or transportation though, very common, but I don't think those are technically in QR format usually.)