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.
Just show how bitcoin works, explain why it is valued and will be appreciated. The time will come, and every child will learn what bitcoin is, so it's better to teach him before that time, so that he does not have to buy it for millions of dollars.