You ask very good questions. It's a real concern among our educators, but we have to keep in mind that we already have drug problems in our schools. One of the purposes behind this legislation is to mitigate that, or restrict it as much as possible. It may very well be that a province has to establish some kind of provincial scheme to address some of these issues and to change the limits so that we can better address those situations.
On September 11th, 2017. See this statement in context.