It's useless. Unless they're a fucking genius then the kid is going to be clueless. I bet it's something that could be taught in a high school class.
Kids is not the kid you are thinking which are maybe below 10 years of age, kids nowadays are smart and they are very devoted to what they are doing when they love it. I believe bitcoin is also good for them but if they are still minors, they need the right guidance from their parents since in the crypto world, there is full freedom and good and bad can be access.
It is complete freedom that stops me from telling children about bitcoins. I would not want my child to anonymously make forbidden purchases on the Internet
How can your children buy something anonymously in the internet which is forbidden, then if it is forbidden? why will someone sell it? You must say illegal, not forbidden. And if you really care for your children, why bother tell or teach them about bitcoin? they are children, they want to play and candies, don't push them in a imenvironment where he or she might change and make you regret it for the rest of your life