FORTRAN, COBOL and BASIC all used all caps in the 70s when I started to learn programming. People thought I was a nutcase for abandoning cursive in high school!
And don't get me started on punch card programming in college in 1980 :)
Despite ~60 years of updates, the fortran language still isn't case sensitive.
Why were people still using punchcards in the 80s?
To make confetti out of the chads for parades. ;)
Alas, at Princeton University 1980 that was the only way to submit programs. I was doing tech support for professors as part of my work-study package and a couple hours a week on a green-bar paper teletype sorta like this was a huge benefit: https://www.howtogeek.com/wp-content/uploads/2021/05/teletyp...