good to hear that even in schools bitcoin has been talked about. not only bitcoin but cryptocurrencies i prefer. due to this emerging popularity and so many advertisements of bitcoin, lots of people are curious already and started to wonder what are those investments that are good in a long term purpose, although some investments  requires big amount of money to start, here you can have small amounts and start little by little until it grows, and since bitcoin and other cryptocurrencies are volatile, it has been taken advantage and mistakenly identified as an investment, but the real purpose of it is to be an actual currency.