It's not an assumption at all, I live in a Muslim country and I know exactly what is going on. I know what men would do if I look at their wives, girls and if she looks back. For these examples they are covered, and some of them are violent, cases like these might end up with murder. Just like what we heard that day, how a father killed his daughter for converting to Christian. When it comes to religion, most of Muslims has no tolerance, hence you can't act freeily.
Like I said, some of you guys are free to choose, your family is seems and probably is educated, this allows you to act freely (don't get me wrong, I am not claiming the opposite, that whoever covers is uneducated).
Like I said most of those who covers are forced to, and I know very well it is not an order for Muslim girls to cover, that's not what written in Quraan, but some would claim the opposite and won't allow that to happen in their family/society.
and this case is not comparable with nuns, they are religious persons, work for Church, totally different issue.