children doesn't need to know about currency,but teenagers does,and i think there's so many explanation video in youtube so don't wasting effort wasting your time when you can just give them about the link of video so they can learn from it,whether they will be interested or not,it's definitely depend on them
I agree , children must enjoy their life , never take their innocence by money, there would be a time for them to know what makes a bitcoin and for them to learn how to deal with it, for teenagers I think it will not be ttoo for them to understand this as long as they want to learn and earn in bitcon.