Over here, I can say to the best of my knowledge, nothing is being said about bitcoin in high school even in the university, only few people who are into online business can say something satisfactory about bitcoin. The question is who will even teach about bitcoin in our high schools when bitcoin just started getting popular in 2010 and the teachers in our high school have had their education in the 1990s or 1980s in and more importantly the syllabus is their constitution which in this case the issue about bitcoin is definitely missing.
Blockchain is an innovation of the modern world, and the old teacher did not even know what it is. Therefore, to study the case we need to have to teach a new generation of teachers. It will take a little time it is not yet. While bitcoin it enough, I think.
The Bitcoin blockchain technology has been around only for some years (and these are still in single digits), so it wouldn't be very wise overall to teach something which hasn't yet fully established itself. I refer to high (and below) schools, obviously. In this sense, schools are conservative, and it is actually a good feature or quality since they should give basic but solid knowledge before anything else...
Bitcoin certainly doesn't belong to this category of things

I'd rather say it should be studied at universities as part of economic or computer sciences classes