There's a financial motivation for such regulation. One doesn't want to **** off/offend potential customers.
In religious store that caters to a specific clientele, probably not such a big deal...
And U.S. public schools operate on a somewhat similar philosophy--why court the potential for disruption or fights when a student is offended by another student's "free expression" of religion.
What's sad is that so many Christians who strongly support prayer in schools are adamant that it means only prayer to the "true God," their own, of course.
I once discussed this with a fundamentalist Christian and said (as a teacher at the time), "Absolutely. I think we should reinstate prayer in school. Jewish, Buddhist, Pagan, Wiccan, the Scientologist equivalent--I expect they have something along those lines, Taoist, Confucian, Hindu...well, there are probably others that might be represented by one or more of our students at one time or another. We'll just rotate, carefully scheduling so as to give each religion's prayer equal representation."
She was outraged. That was completely unacceptable....obviously. What WAS I thinking to suggest such a thing?
Oh, I don't know...maybe fairness, justice and openmindedness?
I don't necessarily think it's fair, just or openminded to ban religious clothing and jewelry, but it's far more expedient as I said previously. The reality being what it is in U.S. public schools and the minds of taxpayers when their tax dollars aren't spent on pushing subject matter every moment.