I'm gonna bet $100 that this didn't really happen.
It's possible, as @hd49728 stated, that "children love art," so this might be true, but the OP needs to support this up with photographs of the youngsters drawing the Bitcoin logo.
Nonetheless, it is always a good idea to start our children with solid knowledge because they will develop with it. If they are exposed to Bitcoin knowledge at a young age, they will grow up with it, which will be really beneficial to them.
That could be the best way to prove that this has really happened, at least there should be some supporting photographs. But actually, it doesn’t really matter if this one is fictional or not, one thing is certain, exposing young minds into bitcoin will help them develop early interest in bitcoin and might be a good motivation once they’re mature enough to start investing in bitcoin. Bitcoin is an art, a man’s way to tell his choice in life, and if it will be explained well into children, these kids will certainly love bitcoin and the whole thing about it.