That could be a good idea to start with , but as you said "children" , so make sure it's something beautiful and fun so they get it on the first place , I'd like to hear more about the Bitcointalk YouTube channel idea , What are you planning to add there ?
It's never enough to advertise bitcoin , because we are in a war with the other side (banks , media , governments ... ) Media for example try to convince people that only Terrorists and criminals use Bitcoin on the Dark-web which is not true , same goes for for governments just couple of days ago .. Ukraine trying to convince their citizens to use use other payment methods that reserve the user protection and that kind of things ..
Oh, don't worry. I love kids, and they inspire me to unleash my inner child. I'm sure I can make my items eye catchy. As for my YouTube channel, I will be sitting in front of my camera explaining the anonymity of the digital currency, when it was created, where it was created, who created it and so on. From there, I'll make the channel more fun by talking about topics the BitcoinTalk community likes to talk about on the forum. You know, make it fun.
As for the currency being criticized, I cannot even argue with the dangers of anonymity for too long. We don't know where a payment is coming from, why, or what is being purchased. As for the currency hiding identity, it sounds rather scary once you really think about it. What would be the point of hiding your identity unless you have something to hide? The government will probably argue and say that only criminals have something to hide.
I'm not trying to fight against this currency. I'm trying to be a devil's advocate for the possible arguments that might be faced. As for me giving my best argument, I would probably say "Bitcoins are a necessary step in protecting the privacy of people who feel they do not require revealing who they are to people. We are born with names that are given to us. We need the freedom of being who we want to be. Our future generations will thank us for having a safe medium to spend our money with dignity and pride, and not feeling bad that we belong to the government. We belong to ourselves, and the people we love. Thank you".