The internet offers you two cartoon answers (pure free expression or pure oppression), and both erase the actual women. The real answer is a map: scripture and its interpretations, worship, identity, modesty, family, fashion, and choice, in different mixtures for different women. In Pew's 2017 US survey, 42% of American Muslim women never wear it at all. This page draws the map with the women's own words in it.
Sourced to Pew and ISPU survey data, Egypt's Dar al-Ifta, named scholars on each side of the interpretive question, and Muslim women speaking for themselves in published interviews.
Hijab: a scarf covering the hair, face visible (what you most likely see in North America). Niqab: covers the face except the eyes. Chador: a cloak over head and upper body, face visible. Burqa: covers face and body. These are garment descriptions, not measurements of anyone's devotion or politics. And 'hijab' in Muslim usage also names the broader practice of modest dress, of which the scarf is one part.
Two verses anchor the practice. In Abdel Haleem's Oxford translation, 24:31 instructs believing women to 'let their headscarves fall to cover their necklines,' and 33:59 to 'make their outer garments hang low over them.' What those words legally require is the interpretive question: the mainstream classical position (Egypt's Dar al-Ifta states hair covering 'is legally obligatory' for adult women) stands beside named contemporary reinterpretations, like scholar Javed Ahmad Ghamidi's, that modest dress is commanded but 'covering the head is not mandatory.' Both positions are held by serious people. Notably, the face veil is a separate question: Dar al-Ifta itself attributes to the majority of scholars the view that the niqab 'is a custom and not part of religion.'
When ISPU surveyed American Muslim women who cover in 2018, their stated reasons were: religious obligation and piety (54%), making Muslim identity visible (21%), and modesty (12%). In interviews the voices are more vivid: 'I wanted people to know that I am a proud Muslim,' as one woman told ABC. Add style and heritage (how a hijab is styled can reflect fashion trends and cultural background, as ABC's interview source puts it) and you have the answer: a multi-cause map, different for each woman, sometimes different for the same woman across her life.
In Pew's 2017 U.S. survey, 38% of Muslim women reported wearing hijab all the time, 15% some of the time, and 42% never. A convert interviewed alongside the proud hijabi put her own devotion this way: 'It's about my intention and my pure heart, and that I'm trying every day.' ISPU's guidance to journalists covers everyone else too: don't assume covered women are religious, and don't assume uncovered women aren't. Clothing is not a piety meter in either direction.
Both realities documented, neither denied: in ISPU's 2018 US sample, just 1% of women who cover said someone else required it, while Pew, measuring rules and incidents in 2018 (published 2020), found women in 61 countries faced government restrictions on their head coverings, including states that mandate covering (Iran) and states that ban it in places (several European countries). Even institutions that hold hijab obligatory reject compulsion: Singapore's Fatwa Committee states the community 'should not coerce Muslim women to wear the tudung.' The unit of explanation is the individual woman, not the garment.
Address the person, not the scarf. ISPU's own media guidance is to treat Muslim women as people with varied roles and interests, not to make clothing the automatic subject of every interaction. If you know her and it's genuinely relevant, 'would you mind if I asked about your headscarf?' gives her an easy yes or no. Never touch or rearrange it (it's clothing), never ask her to uncover for curiosity, and in a US workplace, hijab accommodation is standard practice the EEOC itself lists as an example. That's the entire etiquette.
For different reasons, woman by woman: in ISPU's 2018 US survey of those who cover, 54% cited religious obligation or piety, 21% visible Muslim identity, and 12% modesty, with culture, family heritage, and personal style woven through. There is no single answer, and Muslim women themselves are the authorities on their own reasons.
The mainstream classical position, stated by institutions like Egypt's Dar al-Ifta, is yes, hair covering is obligatory for adult women, grounded in Qur'an 24:31 and 33:59. Named contemporary scholars such as Javed Ahmad Ghamidi hold that the Qur'an commands modest dress but not mandatory head covering. Both positions exist among serious scholars; individual practice varies accordingly.
No, in Pew's 2017 survey of US Muslim women, 38% reported wearing hijab all the time, 15% some of the time, and 42% never. Research organizations explicitly caution against reading religiosity off clothing in either direction: covered women aren't necessarily more devout, and uncovered women aren't necessarily less.
In the US sample ISPU surveyed in 2018, just 1% of women who cover said someone else required it, while globally, Pew found government restrictions on women's head coverings in 61 countries in rules and incidents measured in 2018, including both mandates to cover and bans on covering. Coercion exists in both directions in different places; the answer describes the individual, not the garment.
Hijab is a scarf covering the hair with the face visible; niqab covers the face except the eyes; chador is a cloak around the head and upper body, leaving the face visible; burqa covers the face and body. They are distinct garments from different regions and practices, and per Dar al-Ifta, the majority of scholars treat the face veil as custom rather than religious requirement.
If you know her and the context is genuinely relevant, a respectful 'would you mind if I asked about your headscarf?' gives her an easy choice, whether she welcomes the question depends entirely on the person, as ABC's reporting on exactly this puts it, so accept 'I'd rather not discuss it' as a complete answer. Never touch or adjust someone's hijab, and don't let the scarf become the only thing you ever talk about.