Freedom of religion

"...whether or not they're allowed is at the principal’s discretion."

What? So the principal of a school now has the power to suspend the Constitution? Freaking amazing! Bye bye rights.

In all reality it is.
It is a symbol and it is worn by a gang. A very BIG gang.

I used to be Catholic, a very long time ago. Interestingly, Catholics are told by the church NOT to wear the rosary, it is specifically not to be worn. It is not an item of apparel, or bling, and is only to be used in chanting of prayers when the rosary is said.

So is it a gang symbol? Yes, more than likely. Since, wearing it is contrary to Catholic doctrine. However, that still does not invalidate our right to wear whatever the Hel we want. Supposedly, this is still a free country, cough, cough, free country.

Students in school have never had the protection of the Constitution; laws have been passed which abridge many protections adults take for granted. And which those same kids also have off campus.

Especially if no adult is willing to stand up to the administration and school board. If a student stands up for his rights, he/she is likely to be punished or expelled.

I'm actually old enough to remember the Civil Rights Movement. As for the Constitution, it applies to every citizen of the United States, student or not, on campus or off. Now if unconstitutional laws have been passed that "abridge" our rights, then it's our own fault for allowing them to stay in place. Constitutional rights apply to everyone in the United States, but they must be fought for constantly, especially against idiots who think of them as "privileges."

Students in school have never had the protection of the Constitution

I think that is true until the age of sufferage. Children themselves don't have the rights of a voting citizen. Their rights fall under their parents or guardians.