yeah fuck that. there's a difference between just being late because of circumstances outside of your control and chronically showing up late because you don't give a shit. does teaching kids strict, no-excuses punctuality like this matter? no.
I could complain for hours about things you have to unlearn in the adult world because of things like this.
my middle school had the resource officer pull me aside, scold me, and give me lunch detention once for walking through the classroom door as the bell rang. me, a goody-two-shoes crybaby straight-a kid with a crippling fear of messing up