As others have noted, some schools do offer classes in philosophy. And with the current budget cuts going on, philosophy is not the only subject that is being ignored. Philosophically speaking we should also come to grips with the arguments of the likes of Aristotle and Plato who contended that the study of philosophy is not for children or teenagers but should instead be taken up at about 40!
Why is philosophy not taught in high school? I have heard some arguments against it, but they all seem pretty poor such as: "parents would not like their children questioning their views". It seems like philosophy has a lot to give in a high school setting, at the very least classes like Critical Thinking would give students tools for assessing arguments. I could understand if most people went on to college, but many don't and it seems like some of the skills which philosophy bestows could greatly benefit our society. I really don't see why professional philosophy has not ventured down this route. I would be very thankful for any insight on this topic. Thanks, William P.