I would not suggest investing to Bitcoin using their save money, it is very risky. There is a golden rule that " invest what you afford to lose " it looks like your friends is going to lose money because of the unstable price of bitcoin. Or they will gain, its the investor risk to take. But if you are so eager to teach them just to give them knowledge I think its ok, like common knowledge, how does bitcoin work and some technical of bitcoin. Let them know that Bitcoin isn't about just gaining money.
What they need is money, knowledge isn't their priority in that situation.
OP clearly stated that they are unemployed, so we can assume they have no money to invest or trade Bitcoin. In this case, giving them a lesson about Bitcoin won't solve the problem since they are unlikely to have no money for their capital. Unless OP wants to share his money with his friends, so they can start to trade Bitcoin daily. But there are some serious problems here since Bitcoin is illegal in their country. It will be dangerous if the government knows their activity related to Bitcoin, they can be arrested. Instead of getting money, they are at risk of being jailed. I think it is not a safe way to let them involved in Bitcoin.