You can have an elected parliament that makes laws, but if the judiciary is appointed by the Supreme Leader - who is a representative of God - then you're kind of at an impasse.
Whether Iranians are drinking wine in the evening or painting something "offensive," they choose not to dwell on the fact that they could receive some seventh-century punishment. Laws are inconsistently enforced, and you can usually pay off police to look the other way.
I think Iran is the kind of place where it's difficult to predict what's going to trigger structural change. It's hard to also predict the role that civil disobedience or mass protests could play.
