Schools aren't the place for this.
Schools are facilities that are paid for, and supported by, local taxes. They're exactly the place where this should happen. Classrooms should be available early on school days. Each flavor of religion could have its own classroom for thirty minutes. Local clergy could lead and missions teams could provide breakfast for the children. A determined citizenry could make this happen if it took control of its school board.
Schools aren't the place for this.
Schools are facilities that are paid for, and supported by, local taxes. They're exactly the place where this should happen. Classrooms should be available early on school days. Each flavor of religion could have its own classroom for thirty minutes. Local clergy could lead and missions teams could provide breakfast for the children. A determined citizenry could make this happen it it took control of its school board.