West Virginia State Board of Education v. Barnette, 319 U.S. 624 (1943), is a landmark decision by the United States Supreme Court holding that the First Amendment protects students from being compelled to salute the American flag or say the Pledge of Allegiance in public schools.
In most schools it is. 46-47 states have laws requiring it.
https://thehill.com/homenews/3256719-47-states-require-the-pledge-of-allegiance-be-recited-in-schools-here-is-a-breakdown-of-each-states-laws/
They can’t require participation.
It says I live in a state that requires it with no exceptions and that’s simply not true. In HS a lot of students didn’t participate.
It’s been made clear in court that students can’t be forced to make the pledge against their will.