And the example you cited was of a woman who was already teaching and decided to start wearing niqab, in which case she would have already had a bond with her students.
She was a supply teacher, not the permanent teacher with whom they worked with all the time.
How would they know whether the kids could form a bond with their teacher if they did not allow it?
Because the children had the agency to express that they didn't feel comfortable with not being able to see the face of their teacher, and their parents expressed their opposition to it, including Muslim parents.
If the children were disturbed by it, it's only because they have been taught to be disturbed by it. Rather than banning the niqab, I think a better solution is to allow the teacher the privacy she needs to be able to remove her niqab in the classroom. I have no doubt those students lost a valuable teacher just because the school had a problem with a scarf over her face. And who says the children should not be exposed to more than one culture?
The school was a multi-racial, multi-religious school, with Muslim kids sitting next to non Muslim kids. They were already exposed to more than one culture. Multiculturalism doesn't reside in the niqab. And its not got anything to do with being taught to be disturbed by not being able to see the face of a figure of authority. Its a natural human reaction, especially amongst children, to seek out and form a bond and empathy with the face of a person, especially with kids, the face of an elder.
Banning a woman from working or participating in society because of her niqab is more oppressive than forcing her to wear it in the first place.
I disagree.