I've practiced Islam for a few years, and while I no longer follow their teachings I'd like to share my opinion on the issue.

The Quran asks only for modesty on the part of woman in Islam. I'm not even sure if the 'hijab' is even mentioned in the book. How 'modest' is modest is partly up for debate: Jordan has adopted western values, and there's a decent number of Muslim woman who don't wear hijabs.

Yes, there's some that wear hijabs by choice, and that's fine. However, we can't really see behind closed doors so whose to say she wears one because she wants to or because of the fear of being shunned by a traditional Muslim family? 

I know my mother is still seen as an outcast by other family members, the "black sheep", when she abandoned her headscarf a decade ago. She doesn't mind it though, and loves being complimented. She still practices Islam, but I've only ever heard her complain about western society's cold weather, parking tickets, and electricity bills.