I would guess many of them have never heard of it because Pakistan is a country of young people, with mostly inadequate education (I believe the average education level of Pakistani women is between 2nd and 4th grade level, or was the last time I discussed this on the 'Net):
Pakistan today has the youngest population among all those countries that have more than 100 million people. In its case, the median age of the population is only 17 years which means that of the 162 million people in 2008, some 81 million are below the age of seventeen.
Pakistan today has the youngest population among all those countries that have more than 100 million people. In its case, the median age of the population is only 17 years which means that of the 162 million people in 2008, some 81 million are below the age of seventeen.
From: http://www.dawn.com/2008/08/25/ebr16.htm