I doubt if the writer of this was there. In 1967, just about every woman wore a mini-skirt--even women who didn't like that fashion trend--because it was the only skirt available in clothing stores. That year, students at Tustin High School in Tustin, Calif. complained that female students couldn't find dresses in clothing stores that met the school's dress code that banned short dresses and skirts.
I took a girl to the Senior Prom in Spring 1969. I still remember her miniskirt when we ditched class one fine spring day.