I remember going to Jahns in Brooklyn with classmates after an event at my high school.
I had one back when they were called JHS in NYC, and if you called it intermediate or middle school, you were pegged as a Long Islander, or maybe even a Jerseyite, LOL.
No cap and gown (thank goodness. I’ve issues with them in the lower grades) but all girls in white dresses and boys wearing ties during the graduation assembly.
Most parents took their children to Jahn’s Ice Cream Parlor for a kitchen sink; the better-to-do took them to the Hawaii Kai on Broadway for dinner (also where most everyone’s Sweet Sixteen took place). It was the first summer in 6 or 7 years there was no reading list or “What did you do for your summer” essay and the graduates made the best of it not knowing what the years to come would bring.
My dad’s friend actually finished the kitchen sink.