Absolutely. My parents grew up with it. I grew up with it. My children grew up with it. My granddaughter grew up with it. And there was not one single incidence of violence in any schools any of us ever attended, we never were concerned about anybody's safety in school. It was a great comfort to the students to be able to share in a prayer for a sick or bereaved classmate or teacher or other concerns they might have as well as a unifying and moderating aspect of the student body in generic prayers at assemblies, sporting events etc. Ditto for a moment of silence to start the school day or for a troubling event or whatever.All evidence is to the contrary. Did you not advocate student led prayer?
No governing body mandated it. But it was the standard and wish of the community as they governed themselves.
For the government to forbid that is so opposed to the intent of the First Amendment I don't even know where to begin. Congress charges the taxpayers for the privilege of having a chaplain start its sessions. To deny the children the same benefit when it costs nobody anything or requires nothing of anyone has to come from a very bad place.