Yes, you are correct.
As somebody who was in highschool in the late 80's, inspecting as much of it as possible, there was a lot of bush. It would have been considered bizarre for a girl to shave bald in those days. She would have been teased mercilessly. Unless she was on the swim team or was a real powerhouse personality. She would still take a bit of heat for it.
As I recall:
75% of girls: Full bush, with perhaps the edges shaved-back during the summer, so it doesn't show in a swim suit or short shorts, like volleyball etc. There was a general premise that only girls that expected somebody to see their pelt would groom it. So they were expected to land a boyfriend while sporting a full beaver, then they could style it a bit for him after that.
24% of girls: Some grooming. Clippers to reduce the hair to half length, but still way longer than you see now. Shaving edges to have clear labia (maybe, but maybe not) and a patch about the size of a 1/4 folded dollar bill or bigger.
1%: Fully clearcut like you see now-a-days. Just the swim team and some assorted weirdos.
Since these were young humans, their bushes were only grown in to random degrees. Some started with a full jungle, some did not.
Then, in the 90's it seemed like the total amount of pubes for the entire population reduced to half. Yay! The idea that women could groom their coochie for their own preference, even if they had no plan to display it, became the norm. It was a good time!
