Your question is divided into two points so let me give me my opinion upon those two.
1. Bitcoin as a mode of payment through school and universities: some schools already adapted to cryptocurrencies like the university of Nicosia which I read in an article ( https://www.wired.com/2013/11/bitcoin-university/ ) and it wouldn't be a surprise if more and more universities follows specially those who provides online courses which will make their programs more accessible throughout the world.
2. Teaching students about bitcoin is not necessary as a course but it could be an additional topic specially in business and marketing courses since its their field of interest but learning bitcoin is not enough to be an individual course or topic because it is not that hard to learn.