I am Muslim I will tell you why , men tend to look at women's lips a lot , with or with out meaning to , so we cover them and its actully part of our religion , for some people it's more of a choice and age thing .
It is mentioned in the Quran and in the bible that women should be covered although it does not specificy the exact manner. The concept is that women are tempresses and the covering (as well as other limitations) gives the man control. Traditionally, men owned women. This was necessary since when a woman gave birth, it may not be obvious if it was your child or not. So as to ensure that the woman gave birth only to your child, it was important that she be kept under lock and key. In an age where most children did not survive the age of 2 and most women actually died in child birth, this was very important. Also, property was only passed on to your male offsprings so a fertile woman was important to your lineage. For this reason, polygamy was practiced. And more kids meant more workers and more people to defend your property. At the time, all of this made sense. Well, times have changed, but some people refuse to admit reality.
Those things are called hijabs or scarves. They wear them for reasons explained above that have to do with their religion...... Hope that help I just had to let you know they weren't just called those things lol
they are called hijabs, in pakistan and other muslim countries, women are not allowed to show there face to anyone but there husband and once in some countries it was illegal for a girl or woman to show her hair