This one is funny. Bitcoin or cryptocurrency can't be a subject in school (I don't know what you're thinking.) It's like teaching "DOLLARS AS A SUBJECT IN SCHOOL" do you think academic institutes will approve that kind of subject? hell no.
You know what? everything about bitcoin and all about cryptocurrency can be found in the internet. All ways on how to earn, different strategies in trading, investments, savings, strategies in investing to ICO's and even making your own coin can be all found in the internet actually a teen or kid can learn bitcoin/cryptocurrency if they want through internet. My only point is why do you think it's a best way to have bitcoin subject?