[mtmsr]

Because you need a way for the pub to authenticate that this is indeed your qr code (matching your id)

[Mediterraneo10]

The EU standard was developed for the purposes of avoiding additional quarantine or testing during cross-border travel, not going to pubs within one’s own country. For domestic use of proof of COVID vaccination, some countries developed their own internal standards alongside the EU standard.

[raxxorrax]

Not currently visiting pubs, I still wait until they stop validating their guests.