When the mullahs took control of Iran, they banned dancing, music and much of the social contact between the sexes, among a slew of other activities that are generally considered normal behaviour in the rest of the world.
Since then the situation has somewhat improved, though the country remains very much under the control of the theocracy, which, though somewhat more lenient, continues to frown on anything even remotely resembling what they refer to as “Western decadence.”