According to the US, as long as there is freedom of religion, this country won't ban certain articles of clothing, rituals or other things based solely on religioin. IOW: if, in this country, someone's religious beliefs allow them to violate rules of law where certain things are banned, then they will be allowed to do or wear such things. Example: at my school, the dress code specifies NO HATS to be worn with the exclusion of wearing a head covering for one's religious beliefs. So, yeah, a student can actually wear a burka, because it's considered a religious garment (or one can claim it to be), but they can't wear a baseball cap with their favorite team logo on it.
Disclaimer: I am only responsible for what I say, not what you choose to understand.