Some peoples' religious beliefs compel them to never show their face in public, including in photographs. I might disagree with such beliefs, but my natural inclination is that they should be free to live to their beliefs.
As a religious person, I'm slightly surprised* that you're inclined towards not allowing people to live in accordance their religious beliefs. I would have thought the religious community would be arguing strongly in defence of such rights. What sort of precedent do you think such laws would set for religion in society in general? Aren't you guys digging your own graves here?
* I'm not really surprised