I often talk about this with my Iranian friends.
For example: men and women ride the subway, swim... And so on and so forth are separate.
Girls can't have sex before marriage, either they will be scolded by their fathers or discriminated by their families, or they will be abandoned by their husbands later on, and women have no status and dominance in a family.
The dress is the Muslim kind of robe, but with the change of the times, now wearing clothes is not so rigid, wearing casual wear young women, but not like the Chinese girls so exposed.
There are no bars or casinos, and you can drink whiskey, but you have to buy it at home.
Don't think Iranians are so rigid, Iranians are very good at enjoying life, Iranians are very cheerful, kind, and polite, also very hygienic, hehehe....