Prayer was never removed from schools. Students can pray all they want.
Recited prayer was removed from school.
A student can recite any prayer they want to.
That's really not true. Government schools prohibit the mention of Almighty God and His role in the founding of our nation, much less prayers to Him.
Witnesses before the court, are required to make an oath, to wit"I, A. B., do swear by Almighty God, the searcher of all hearts, that I will , and that as I shall answer to God at the last great day."
Unless they are taught about Almighty God and the judgment that He will inflict on people on that last, great day, how can they in good faith make the oath?