| Even teachers use Whatsapp to communicate with pupils nowadays. Here in Finland, from 13 and up, it's pretty much total social exclusion and severely reduced ability to participate in school work if you don't have a smartphone. Teenagers without phones is pretty much uneard of, apart from in some religious circles. The thing about those teenagers is that they rarely meet outside school. Covid made damn sure parents are somewhat paranoid about social contacts, and having people over is still pretty rare. The result is teenagers communicating pretty much all the time, but it's all done over social media. |
There are messaging platforms that are not dependent on Big Tech. If communication via group chat is so key to the school operations, parents are more than entitled to ask the school to implement a proper platform for it.
> Covid made damn sure parents are somewhat paranoid about social contacts, and having people over is still pretty rare.
That is your first-order problem to solve.
Giving kids a smartphone as a substitute for proper social interaction is a terrible band-aid.