They do, they look like they're in burial shrouds.
But look at the number of Muslim women raised in the West, exposed to the liberated culture of the West, who nevertheless submit to arranged marriages to some creep directly from Pakistan they've never seen before. It's not always coerced either. I read about a Muslim girl of Pakistani descent who had lived her whole life in Canada and voluntarily started adopting Muslim dress to satisfy the would-be groom's parents.
I submit that there's some sort of genetic insanity in that part of the world. Islam is not a religion that makes people lunatics, it's a religion invented by lunatics. In the chicken-egg dilemma, I say Islam is the result not the cause.