As it is for the canon, for the great books, so it is for grammar: important, but also deeply, structurally repressive; useful and valuable, but also powerful forces for the status quo repression, for disabling and dis-empowering people.
And teaching is about enabling and empowering. And it is also about giving one access to the tools of power. So: we are careful. We navigate, negotiate, trying to find some space between anarchy and fascism.