There was a recent case where a couple of boys were expelled from school for refusing to remove their "serban" (type of turban), their father argued that being forced to remove the serban infringed on their right to religious freedom.

I like what Justice Abdul Hamid Mohamed had to say on the serban and Islam.

“As far as I can ascertain, the al-Quran makes no mention about the wearing of a serban. I accept that the Prophet (PBUH) wore a serban. But he also rode a camel, built his house and mosque with clay walls and brushed his teeth with the twig of a plant.”

“Does that make the riding a camel a more pious deed than traveling in an aeroplane?"

“Is it preferable to build houses and mosques using the same materials used by the Prophet and the same architecture adopted by him during his time?”

" It is not everything that the Prophet (pbuh) did or the way he did it that is legally or religiously binding on Muslims or even preferable.”

"The question is whether the wearing of turbans by boys of the age of the appellants is a practice of the religion of Islam. The pagan Arabs wore turbans and kept beards. It was quite natural for the Prophet (pbuh), born into the community and growing up in it, to do the same.”

makes a compelling point about knowing the difference between religious teachings and cultural norms