I consider polls of public opinion in Iran as reliable as the methodology they employ. They are no less reliable being conducted in Iran than if conducted in say the United States. Those who don't understand how that could be, simply don't understand Iran. In Iran, as long as you aren't organizing with someone to start a movement that would threaten the regime, you can say pretty much anything you want. As such, the Iranian people are some of the most opinionated people you will ever meet. And those opinions, expressed in often colorful language, is quite regularly damning of the 'regime', 'the government' and any number of political issues and personalities. Just don't organize and create affiliations with groups the regime doesn't approve; otherwise, no one in the regime cares what any person is yapping about! They are actually very smart that way; they let the public let off steam comfortably while trying to make sure nothing more dangerous comes from it. No, which is my point: the law on the issue in the US reflects prevailing standards. There will be, of course, some who prefer things differently. It only becomes a problem when the latter are a large enough number, such as is the case in Iran. A whole list of dos and don'ts which young people ignore just like they flout the hijab rules in many ways as well. So the regime's "morality police" sometimes visits hairstylists based on this excuse, although usually its a scam to extort money from them. That is, incidentally, also what the hijab rules mean for many of these folks in Iran as well: a very lucrative source of income from wedding halls, restaurants, coffee shops, etc. The "morality police" is a mafia type group: they go to these businesses to extort money. If they get paid, they are left alone. If not, they have to run through the hoops in Iran's judicial system, which also has its own mafia gang which resolve cases not on merit, but who pays the most. https://www.rferl.org/a/Iran_Unveils_Approved_Haircuts/2092046.html Iran Unveils Approved Hairstyles No, I said "right now) because I was looking back in the past, when whether compulsory or not, head scarfs were pretty much the norm in the West as well. In the US, I believe they gradually began to fade after the "roaring 20s" (1920s) although it wasn't until the 1960s when they were no longer prominent at all. Yes, technically, the head scarf is supposed to cover a woman's hair, but in Iran, Iranian girls have figured out ways to wear it that shows the hair as much as if they were not wearing one! The pictures below are quite typical, but also what poorer conservative folks complain about when they say "Tehran's streets have turned into a fashion show." Unless something else emerges in place of the institution of marriage and family, including for rearing children, its demise is not a hopeful sign of things to come. But that doesn't mean the factors contributing or causing that demise are necessarily bad things. In any case, you can never turn the clock back: the issue is how to best handle the problem looking ahead without ignoring or neglecting it.