Thank you Apple! Simply outrageous that these business have the audacity to complain about Apple making developers inform and receive consent for tracking.
Do you realise that this is Apple who have designed and developed this advertisement identifier for user tracking purposes?
You can disable tracking since iOS 9, IIRC, every app will get their own random id, making it useless.
EU GDPR requires apps to get consent from users to serve personalised ads since 2018.
Apple just.. okay