As far as I know, it is taught in schools already, but it is introduced to college students in courses like information technology, computer science, computer engineering and other courses related to computer. They are taught about the concept of nodes and blockchain technology, how it works and also mining. The non-technical side or the layman's term should be taught to the masses because cryptocurrency os an emerging technology that is here to stay for the coming years. if one can teach how to send an email or how to add a friend in social media, then teaching cryptocurrency should also be considered.
I think it is good if the students know about the upcoming currency in the world. They should also know blockchain technology and the features of this new technology. But this should be in a limit and not like a subject. There should be an informative programs in schools and in that programs cryptocurrency should be taught. Students will be aware about it before their practical life.