Earlier quoted context omitted.
Yeah, all you need to do is include a persistent identifier shared across all sites in the world! In fact, this solution is so great you don’t even need cookies anymore and you never get logged out if you accidentally delete them!
Is this sarcasm? The Advertising ID system is from Apple and in use in all apps, and it can be reset at anytime. It increases privacy, security, and efficiency.
I don’t care what you or your industry today decides it ’needs’, you’re not getting a persistent webwide tracking ID.