Saudi Faceless Women

I still don't understand the inconsistency with which this type of censorship is applied here in Saudi Arabia. It's so random that I feel it must be attributed to each individual company's policies and not necessarily a government agency.  The faceless women in advertisements sometimes even includes children's faces and men's faces as well, but most often it's only applied to women. The mannequins here in Saudi Arabia, however, are all consistently headless. There are no statues of entire people or living things (body parts are allowed though) and I believe the reason for this is religious, regarding worship of idols being prohibited.