I think we need more education on politics in general.. although, I can't see having it as a compulsory subject as a good thing. Most people I know find the subject really very boring, and if we were to have classes in it at GCSE years or below, it'd be treated as a doss lesson. Most teachers manage to make the subject mind-numbingly boring.
I now do politics at A-Level and love it - but I chose to do it, so am naturally interested in it. If it were to become compulsory, I have a feeling it would just turn out to be a lesson nobody pays attention to, and treated like a joke.