Your USA basic public school system. (Not saying ‘darts’ was safe by any means btw.) It was a long time ago...things were different then. Do you remember the pocket knife throwing game most of the fellas played before school, at recess/lunch time and after school, wherever there was a decent patch of lawn? It was called ‘mumbly-peg’, (a few different spellings of that word I’ll bet), and the old boy scout pocket knife was the ‘weapon of choice’. Heck, we even had the playground teacher/monitor settle the ‘who’s knife was stuck closer’ silly arguments between players. Like I said, it was a while back and fun......but I would not want to go back for anything.
I remember mumbly-peg.
But I never heard of needle-darts! LOL!