

Because the line between “social media” and “talking to other people” is so blurry as to not exist.
Also, and more importantly, the power of these companies is so great in effect youll only enforce that facebook etc. are the only ways of talking to each other that can exist legally and entrench the very problem you want to solve.
For example, is whats app social media?








No im not arguing its hard to define, im arguing that youll have to ban children from whats app. Private minecraft servers (even ones owned and run by the kids) too. If you dont do this you leave a space for the tech giants to bring the targeted ads and then youll have to ban kids from each space as they move in.
Any communication channel will fall to this if you take the approach of banning children from them one by one instead of stopping this behaviour by the tech giants entirely by legislating against targeted advertising directly. These services are just as toxic to adults.