I had a C++ class in high school where I felt like I really learned nothing. I never wrote anything more complex than input and print statements. I spent the entire class reading other stuff and playing videogames. It was unsupervised and learn-at-your-own-pace, so everyone could do whatever they wanted so long as you turned in a final assignment. Mine was just inputs and print statements.

I technically wrote my first line of code in that class, but I didn't actually start programming until nearly a decade later IMO.