Prayer is school is already legal. Society of Sisters and Wisconsin v.
Atheists and freethinkers are often much better educated about religion and the bible than typical believers. He then explains that the Court agrees with the petitioners that this prayer is unconstitutional because it was composed by government officials to promote religious beliefs.
It is entirely proper that, in the absence of expression to the contrary on behalf of the parent or guardian, the school should make the deliberately paternalistic choice to hold a school prayer for the pupils.
Doe recognised that such social influence upon pupils, exerted by colleagues and staff, can render even attendance at voluntary extra-curricular events, such as a football game, a matter of compulsion.
Were it to be otherwise, churches would not pay property taxes, policemen could not protect mosques, and the name of God would be banished from the courtroom, Congress and the oath of allegiance.
The Establishment Clause, unlike the Free Exercise Clause, does not depend upon any showing of direct governmental compulsion and is violated by the enactment of laws which establish an official religion whether those laws operate directly to coerce nonobserving individuals or not.
A child might of course feel a small and perhaps significant degree of social isolation from not participating in the prayer.