Phones like vapes in schools are there so businesses can profit by exploiting kids. The device hardware is powerful and potentially useful with the right software but the most popular apps are generally exploitative and potentially dangerous to mental health and privacy and because the industry uses dark patterns based on gambling to drive up engagement they are a distraction and reduce attention.

My kids have a lot of access to technology and the Internet at home. I am not opposed to them having phones when they show the right level of maturity and demonstrate a real need but they don't need them in class. Their school has had a phone policy for a long time which I support. Kids should have the freedom to be themselves at school and make mistakes without them being captured and spread via mobile devices.