Yea that's a smart move, telling them about Bitcoin.I think it will be a great idea, if Bitcoin and other crypto trading is taught as an extra curriculum activities in school. It would make lots of sense for those student who would be going into trading in the nearest future. Informing them at a young age will help them broaden their idea on the cryptocurrency market, and at an older age trading won't be a problem for them cause they already learnt the foundation parts back in school.
They should also not engage in it for now because they wont be able to bear the risk all by them selfs. it will distract them from their studies and they may end up having low grades