That said, and granted that I am old as dirt; the last military graduation I went to was in 1963, when the attendees were well-groomed and nicely dressed — the men wore coat and tie and the women wore gloves and small hats with nice dresses, stockings and heels, and everyone was 30 to 75 pounds lighter. Dwight D. Eisenhower was in attendance. I was shocked to see how most of these people were dressed, and that someone connected to the event had "helped" by distributing T-shirts for the occasion. Seems that few Americans want to graduate to adulthood any more.
Everything is more informal now. People used to wear jackets and ties to college football games back in the day. However, more formal wear would have been uncomfortable in the heat. Graduation Day wasn’t too bad but the day before on Family Day, the weather at Parris Island was brutally hot and muggy with mosquitoes bouncing off us.
BTW, I grew up reading comic books and the future was always presented with people wearing elaborate clothes with almost knee high boots, etc.. That’s what I thought our current times would look like back then. Instead we ended up in the future wearing in public basically what would be considered underwear back then. Oh, and no knee-high boots but plenty of flip-flop slippers nowadays.