So are there no limits to what a high school student can have on a Tshirt--realizing any such limit will be controversial and probably political to some degree?
(Personally, I had to wear a jacket and tie though, so what do I know.)
There's in fact a U.S. Supreme Court case, Tinker v. Des Moines, about the limits.
The students were wearing black armbands to protest the Vietnam War; they prevailed:
> The court observed, "It can hardly be argued that either students or teachers shed their constitutional rights to freedom of speech or expression at the schoolhouse gate."
> The Court held that for school officials to justify censoring speech, they "must be able to show that [their] action was caused by something more than a mere desire to avoid the discomfort and unpleasantness that always accompany an unpopular viewpoint," that the conduct that would "materially and substantially interfere with the requirements of appropriate discipline in the operation of the school."
I'm probably missing something but from me at two HSs and my three kids later in HS clothing connected to drugs, alcohol, smoking, profanity, nudity, and sex were prohibited.
(Personally, I had to wear a jacket and tie though, so what do I know.)