It might, but would that achieve much? Tobacco has done ok.

Tobacco paid billions of dollars, and we've heavily restricted where it can be used, where it can be advertised, and who can buy it.

Companies don't necessarily have to suffer when restrictions are placed on them.

Ask any educator what the biggest positive change was to U.S. high schools in the 1970s and they'll probably answer that it was the ban on smoking in schools.

I expect a similar response in the future regarding bans on social media.

I can only imagine what it's like right now in schools. I can't see how anybody arguing the point that student are allowed to use social media in school is an okay activity. I know there are some countries banning the use of such activities in Europe and some others i can't think of right now.

Algorithmicly personalized social media becoming as stigmatized as smoking would be an amazing outcome, and is a great goal for regulators.