The idea feels like sci-fi because you’re so used to it, imagining ads gone feels like asking to outlaw gravity. But humanity had been free of current forms of advertising for 99.9% of its existence. Word-of-mouth and community networks worked just fine. First-party websites and online communities would now improve on that.
The traditional argument pro-advertising—that it provides consumers with necessary information—hasn’t been valid for decades.
That’s fair, I think this could be allowed by authorizing those ads to be placed by local cinemas, concert halls, and museums.
That would also mean a film’s marketing has to pay cinemas directly to advertise in-town through them, which would be a source of revenue for them !