The general observation is that terrorists have disguised themselves in women's clothing and the covering of faces is contingent with that threat. It is an easy method of recognition avoidance. Secondly females are emancipated almost world wide except in the male dominated Arab world. These women have been subjugated for so long they have no concept of anything else other than that which has been imposed on them. Canada has every right to require the face to be exposed to simply confirm identity. If concealing the face is acceptable just try walking into a bank with your Ronald Reagan mask on. The only time you see faces covered is to conceal identity if your are being sought for a crime or are commissioning a crime. Other wise only law abiding citizen present themselves without secrecy and are comfortable with instant recognition and are comfortable with that.