Since we are on the topic of first jobs....
I was literally sitting in my chair during math class in high school when I was offered my first job. The professional photographer was in our room shooting a few pictures for the yearbook. I went to see him after class and got the job.
I was the photography geek in school. I was the staff photographer for the yearbook. I took all the pictures and processed the film and made the prints in my home darkroom. There were some photos I could not take because I was in school. The school had used the same professional for years. I was taking away most of his business at that school so he hired me.
The cool part was my job provided me with a Hassleblad, 4 lenses and strobe equipment. I had photos published in Time magazine and many newspapers. All while still in high school.
My high school had no photography equipment at all, no darkroom or anyone teaching photography.
Here is a photo of me in 1972 or 1973.