Bitcoin is difficult to explain. I also felt difficulties in understanding bitcoin for the firs time. Let's share how to explain bitcoin to children of teenagers. In My country I can say 98% children don't know bitcoin. In fact, bitcoin can be future money. If the children not familiar with cryptocurrency or bitcoin, how can they face the digital era in the future.
I believe bitcoin is not the right time for children to be learned by them and not advisable for the mean time.. but i don"t believe that teenager dosen't know about btc now a days specialy with the high techonology we have.. Maybe in the near future if every nation opens thier mind regarding crytocurrencies etc.., it might have a posibility like money as part of a lesson in mathimatic.