I can remember back 30 years ago, in Elementary school, kids being talked to and even sent home if they came to school dirty or poorly dressed.
School wasn’t playtime. You showed up looking fairly neat and presentable and there were some strict-ish clothing guidelines you were too follow.
It was there classroom. Their craft and work was to be respected. I'd turn my shirt out respect for their role in my and other's life. My right to editorial clothing and it's messages had to take a back seat to good manners.
Now these events become school board / legal system / national news.
I think the 24/7 news television outlets are a downward driver on our society.