Sorry, I'm trying to do my fucking job, as others demand.
I think it will be a good idea to try and get other parents on board. Other parents of the kid's classmates. Maybe they are struggling with this too, but don't see the way forward. And you can show them the content of feeds and shit that kids consume. You can come up with some minimum age or other idea, which you suggest for children to have, before you as a group of parents allow them to access things. Or you can come up with a once a month special lesson or something, where you show what can go wrong to the kids, and cooperate with the school.
My kid has a smartphone but no data plan; no social media; can't take it to school.
When I did that, I was the annoying one, who they fought every inch of the way.
When the school banned phones in the playground, I was suddenly one of the first to get it right, in their eyes.
I'm trying to do my job too. But we need certain rules to be consistent throughout our society. Even if they will be broken, it matters that the rules are there and we can agree to them.