i think bitcoin is one of currency,it is not necessary to explain bitcoin to children like USD, RUR etc. they should not give time to any other activity without their study , they should give time only to their study.
no i disagree , when you introduce bitcoin to anyone no matter it's a childern or teenagers or even old people
there would be an influence to the people around
for example when you introduce to a childern that you can buy a game online easier using bitcoin
you don't need a bank accounts or to have an age over 17 etc , then they would start to ask their parents , and the journey to spread bitcoin around your places started.