I watched the video from start to finish on the youtube channel and subscribed to see other discussions and I think it is quite good to be given to beginners not only children because the discussion is lighter and not too serious but the content is very good.
Visual memories are the strongest ones. So, when you read or learn something, try and visualize those things. Here’s an example: You are more likely to remember directions to a destination if you have been there before rather than just the verbal directions or if you know the nook and corners of the place like the back of your hand. To be precise, You see something, you are more likely to remember them longer. This also implies to the context the OP is talking about, we tend to learn and comprehend better if we visualize it rather than just mere verbal explanation.
But indeed in this case the initial goal for children is also very good because after all with a cartoon like this, children can be more encouraged to learn bitcoin because their stimulus is not learning but watching cartoons and this is also a good way actually to make an introduction for children about bitcoin.