Yes, learning about politics and the political system is good for students as the political system affects their lives just as much as it does adults. The sooner a child is informed of the political system, the better prepared that child will be to participate in that system as an adult.
Look, I really wish we lived in a less polarized society but we don't. The fact of the matter is that politics are very much a part of our national fabric now and sending students out into the world without a working knowledge of them does everyone a disservice. Also, learning about politics might actually teach students the art of compromise, a skill most of current leaders lack.