That's a false dichotomy--a school focusing on CS does not preclude covering other subjects well. I doubt anybody wants to do away with art or music or English-

That's a false dichotomy--a school focusing on CS does not preclude covering other subjects well. I doubt anybody wants to do away with art or music or English--rather, they want to take the existing curriculum and add CS, more than they've been able at normal schools. Both my father and my uncle went to a mathematically oriented school in Russia; however, this does not mean their education suffered. What it meant was that on top of doing normal school, they had more math taught at a faster pace. Specializing in high school does not stop you from getting a well rounded education, but it can provide focus and ensures an exceptionally thorough grounding in whatever subject you're specializing in.