Yes. However I want to be mindful with this, particularly trying to shoehorn in traditional subjects. In my experience kids can can smell forced education a mile off. Also every school and country has different curricula and ‘more maths’ isn’t a problem that needs to be solved.
Instead I am promoting this as a framework for, what we call, soft skills. Things like social skills, creative problem solving, teamwork, responsibility, leadership and conflict resolution. And 21st century skills: collaboration; communication; critical thinking and creativity. I think all of us that are exposed to this hobby can attest to how facing down a room full of orcs puts you in a mindset that somewhat heightens these abilities.
These skills are also quite difficult to target in education, particularity leadership, which is a focus at my school.
However, of course, maths and language are also being used, but I won’t be promoting those as the main reason to do this within a school, as there are many more traditional teaching techniques that are already well understood by teachers. In-fact I chose to keep with a d20 system over a d6 system (which is easier to resource) so it was a little bit more mathematically complex.