A child is legally compelled (in most cases) to attend school. I am hardly compelled to visit TikTok, Facebook, Fox/CNN/etc.

I forgo something when I opt out, but I absolutely am in control of that choice whereas a bullied child is not.

I have never been on TikTok or Instagram. I don't have an account on Reddit or Facebook and hardly visit them unless it's someone referring me to a post. If you run an adblocker you don't see ads 99% of the time. You can visit numerous news sites and other journals without seeing anything but the quality content. You can even view YouTube without seeing ads or clicking on garbage videos. It's not hard to avoid garbage on the net. No one is forcing you to participate in places where it's common.