I don't think it's essential to include Youtube videos in piano instruction for children but I also think EDUTAINMENT -- a combination of education and entertainment helps a lot. Here's an example of what I think is useful to parents looking for useful internet programming for their children or for paid teachers in the business of teaching youngsters. At the same time, anything good enough to teach children piano with is useful for adults and seniors as well.
Discussion and further examples. xBASIC INSTRUCTION
Discussion and further examples. xBASIC INSTRUCTION