I lived in Corvallis, Oregon for time which has a pretty big Islamic community. There were many women who wore burqas. Some because their families were very traditional and strict, and made them wear one. However, I met many women who chose to wear one. Like a Korean/American woman who converted to Islam after she got married. And a young women who grew up in a family that didn't believe in them. It mystified her family,including male members, why she would want to wear one. She told me it was very liberating for her to don it because she wasn't being objectified.