"Very commonly" in STEM-focused prep schools (i.e. the "academic" part of the tracked education system that's common outside the US). Which leaves you with very roughly the same percentages as the U.S. approach where Calculus is an elective course.
> roughly the same percentages as the U.S. approach where Calculus is an elective course
I can’t speak with certainty about other places but this directly contradicts my experience living most of the past 20 years in Taiwan (and speaking with friends who taught mathematics in the public school system).
Many, many people not on a STEM track learn calculus in high school.
My wife did the fine art/liberal art at a good mainland Chinese high school and didn’t really learn calculus, and definitely not later on in the fine art university she went to. I get the feeling that most Chinese students don’t learn calculus, but the ones that do are still slot (since China has a huge student population).
