"I used to believe that public school open houses required little more than the obligatory clean shirt with buttons and a swipe of lip gloss."

Says Dahlia Lithwick in a piece titled "Parents Left Behind: How public school reforms are turning American parents into dummies."

That made me wonder: Did I miss a memo about buttons?

I get "clean," and obviously one's upper body must be clothed, but is there a thing about buttons? Do buttons mean something?!