> Ban phones from class. For real. Lock down websites that are irrelevant to the subjects being taught. These are all technically possible with the tools schools have. Even Youtube. If something is important enough to show the class, the teacher can show it on their larger screen.

My kids have had Chromebooks for years at school, and their schools have had the devices pretty much fully unlocked. My eldest, who has struggled with ADHD and other mental health issues, was spending his entire day on YouTube and Discord. Accordingly, his grades were terrible. The school's IT said they don't lock it down because, more or less, "by this age, kids should be mature enough to make appropriate decisions about how to use technology." But they did concede that my son should have his account locked down.

Why on earth schools don't start from the perspective of whitelisting YouTube videos/channels, websites, etc., instead of allowing a wholly open web is mind-boggling to me.

I fully endorse making schools entirely phone-free. Get rid of Chromebooks altogether.