How many times have parents and teachers heard their darling children complain, "Why do I have to learn (history, math, English, etc.)? I'm never going to use it!"

From the limited perspective of youth, we never imagine how the seemingly idiotic things we learn in high school, and even college, will become useful many, many years later.

I had some excellent language teachers when I was in high school. I don't actually remember their names, but I can conjugate Latin verbs and have entire conversations with myself in Spanish to this day.