In practice, the Supreme Court has intepreted the First Amendment as implying full separation of church and state; for instance, school prayer is forbidden [0],

In practice, the Supreme Court has intepreted the First Amendment as implying full separation of church and state; for instance, school prayer is forbidden [0], even if it's voluntary and non-denominational. [0] https://en.m.wikipedia.org/wiki/School_prayer_in_the_United_States https://en.m.wikipedia.org/wiki/School_prayer_in_the_United_...