Bitcoin is hard to explain. I also experienced difficulties in understanding bitcoin for the first time. Let's share how to explain bitcoin to children of teenagers. In my country, I can say that 98% of children do not know bitcoin. In fact, bitcoin can be future money. If children are not familiar with cryptocurrency or bitcoin, how they might face the digital age in the future.
Teaching them is really a good idea although this really might accompany negative impacts for example, once they have finally earned for the first time, they may find it too addictive that they will lose interest in studying or something like that. So, you should really teach them well to be responsoble enough.