What an awesome thread.
When I was at school in the 80s, I had a 110 cassette camera that I used on rare occasions. A few decades later around 2011, I found it in a box and discovered that it still had a roll of film in it! When developed, there were photos of our house in about 1985 and my best friend at the time. The images were so grainy and badly exposed, but it incredible to see them.
In 86, I took a Kodak disc camera to school a few times, and I still have those photos. Sadly, I never used a film camera again during school or uni, missing so many opportunities to capture memories.
During a photography class in 87, I took photos of friends and classmates around the school, and I still have those images. In hindsight, I wish I'd had the urge to get an Olympus XA2 or similar and document my life with it back then.
As for others who had cameras, there were less than a handful. One was a kid from a wealthy family who brought a fancy Polaroid camera to school one day. Another was a girl in our final year who brought a film point and shoot to music camp. My best friend at the time and I quietly took that camera and made a couple of photos of our own, which she only discovered after getting the photos developed, hahaha. One of the teachers at that same music camp brought a camera, and he gave me a few photos later, which I still have and treasure.
I later learned that a friend in the year ahead of me brought a camera to orchestra at least once, and captured images of our conductor. They featured in the school's end of year magazine.
I'm envious of all of you who used cameras regularly in your teens and early adulthood, but I guess I make up for it now.