I think you're right.
Sometimes the schools on reserve have limited extra courses or classes that students are able to participate in, whether it's for such things as music or the equivalent of trade training. However, there's a greater degree of success, in fact, and higher participation rates of indigenous students in colleges and training centres, whether these are career colleges or accredited colleges on the provincial and territorial side. It is actually a stream that is fairly popular, and there are fairly high success rates for indigenous students.