> If s/he has a barcode scanner or an Apple ID scanner, then that scanner can log your visits This system actually lets you only supply your age to the reader

> If s/he has a barcode scanner or an Apple ID scanner, then that scanner can log your visits This system actually lets you only supply your age to the reader and no other info, to avoid the tracking. In other discussions of this, I've learned that many shops and bars in the US already optically scan IDs to verify them digitally (not trusting staff to verify security features), so this is actually an improvement on privacy compared to before.