I'm deeply jealous of the few US states that have banned billboard advertising -- it really feels like pervasive advertising is outright caustic to my brain.
On the other hand, I can imagine that banning that banning one form of advertising drives those would-be advertisers to other mediums, such as the ones that drive addictive apps and such. This would in turn increase the revenue of those apps, and make that business model more attractive, compared to e.g. apps that are a one-time purchase