Some need to start with it, IT support will follow after what people use. Still, there are unresolved problems. A common school distribution would be good, also central group policies for Linux. This infrastructure is sadly often lacking for Linux and any self-made solution cannot scale beyond individual schools.

But I think using Linux would increase technical competence of pupils massively. They don't learn anything from using another iPad. They can use that better than their parents anyway because they already have phones.