A sensible and democratic approach is to treat Islamic dress as public argument. It can then be defended as free speech which invites counter argument, and it can be banned in schools to shelter children until they mature as citizens.
It is very hard to find a plausible argument as to why an adult cannot dress any way they like. Comparisons with motor cycle helmets, balaclavas and hoodies make no sense. Yes, it’s true that if you search, you’ll find that a male criminal evaded the police by dressing as a woman but that’s a world away from claiming that these masks make the control of criminality more difficult.
When journalists have bothered to ask women why they dress in this way, four reasons seem to emerge. Firstly, they are forced to do so. Secondly, they just like it. Thirdly, they believe it to be a command from God or that it pleases God. Fourthly, they are expressing a belief about the nature of people – especially men – which is determined by gender.
If a woman can be forced to dress against her will, it is likely that she is oppressed and unfree in many unpleasant ways but there is no way of knowing by dress alone what is going on.
If a woman simply prefers to dress in this way, nothing can or should be done. She’ll have to expect ordinary respect; the same as that due to any style minority, say, Goths.
However, if she is saying that God wants women covered up either because of divine petulance or because God shares the sexist views of some of Her followers, then the dress is an argument. The term “sexist” is used to refer to a belief that one’s character, behaviour etc. are determined by gender.
Now, at the extreme this is akin to wearing a sandwich board or carrying a placard saying that all men are rapists or the familiar, all men are bastards. At its mildest it is saying that men are driven exclusively or primarily by sexual desire prompted by the sight of a woman’s body, face or hair and that a woman is responsible for controlling this lust by covering up.
The question now arises as to whether the clothes, sandwich board or placard should be permitted? Of course, they should. It is a matter of free speech. However, fellow citizens who disagree are duty bound to engage them in argument. Leaving public order issues to one side, this suggests that anyone dressing in this way in public should expect to be confronted by argument in public in the same way as if they had mounted a soapbox and presented a speech or carried a controversial placard.
Very few people argue for unqualified freedom of expression and most people become conservative when it comes to children. Adults can and must make informed judgements based on argument and information. Children develop and need to be protected from noxious doctrines until they are mature enough to examine them, hear counter arguments and make decisions. If sexism (and, its consequent inequality) is considered a noxious doctrine, its expression in dress should not be allowed in a school.