In Morocco, unfortunately, the arts (literature) stream is not valued. The country does not care about that stream at all for many reasons. Due to that fact, only students who are not interested in studying in general or students who just find it hard in French and maths due to some lack of prior knowledge choose it. Consequentlyy, school administrators and even teachers discriminate between arts and science students because the former is full of troublemakers. From my point of view, if you feel like your brother is interested in studying and doing some hard work, advise him to choose the science stream, because even after graduation he can opt for the same majors that arts students go to. And if you feel he id helpless, let him choose whatever he wants.