I think GP means the coordination between parents, and I agree on that: if you can’t get a strong majority of parents to agree on keeping their children off of social media & smart phones, you as parents have the choice between two outcomes: enforcing isolation vs. letting social media slip through and just trying to delay as much as possible.

Almost all parents either don’t care or opt for the second option (which I also think is the better one), but the dynamics today are that between 10-12yo the pressure to get your kid a smartphone will mount and you have to give in at some point. Being able to wait till 16 would be much better IMO.