Are Burqas allowed in airports? That i think would help...
It is a cultural thing, though, because a very very long time ago the Burqa was a symbol of a free woman who could be married, or was married, whereas slave women had to walk bare, but given that slavery is over, it's one of those archaic things that lives on without especial purpose (at least in the sense of something women would *want* to wear as a status symbol)
Still though, there's no real reason for a societal ban. It raises the question of where certain religious practices clash with society enough to void freedom of religion concerns

Monster Hunter: pissing me off since 2010.







