Actually, in this case I assume that videos made in the form of cartoons are not only for children. Indeed, in this case it seems that the target is for young children because cartoons are always synonymous with children but looking further, the discussion in the video (the content contained in the cartoon) can also be used for beginners because the discussion given is quite easy to understand and quite simple rather than doing learning by reading several articles that are difficult to understand it can be a good option.
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.
Visualization can be a powerful tool for learning and retaining information, I've found that different people respond to different types of learning. It wasn't until recently that I even realized I am a very visual learner - if you draw a diagram/infographic to explain a concept, I will understand it 10x faster. Meanwhile, some of my colleagues prefer reading instruction manuals or listening to someone explain an idea. So for me, it is very important. I'm hoping that visual learning will be more recognized in schools and organizations to aid people like myself.
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.