>No ad agency in their right mind will run a French ad on a webpage written in German, or show an Italian ad in an app where the default language is set to Swedish. None of this requires tracking individual users across websites and apps.
Tell that to all of the ads I used to get and sometimes still get that are in Russian on sites that are in English or apps that are in English.
>your European agency will be in a perfect position to grab market share there.
They will be long dead by that point. Even if they weren't they would be in no place to grab market share, because every region is going to have their own unique rules which means that the biggest companies will profit the most.
Tell that to all of the ads I used to get and sometimes still get that are in Russian on sites that are in English or apps that are in English.
>your European agency will be in a perfect position to grab market share there.
They will be long dead by that point. Even if they weren't they would be in no place to grab market share, because every region is going to have their own unique rules which means that the biggest companies will profit the most.