A group of iranian college students visited my town in the summer.
None of the girls used any sort of head cover and at some that came as a topic.
Even in Iran, as much as they can, every woman goes without it, unless the religious police is somewhere nearby.
The general, widespread view is that it is a form of repression and nothing else, yet their government/religious authority enforces it.
Although unpopular and understood as fascist, these decisions in european countries echoe impositions islamic countries make to foreigners.