There is not a lot of information in this specific video that I believe is incorrect. There is one point however that I believe is either phrased poorly, or not quite correct, and that is the topic of masturbation. While puberty is going to be the start of masturbation for plenty of people, it is also not that uncommon for masturbation to start before puberty as well. As for the second part of this question, I don’t believe any of the topics that have been brought up so far shouldn’t be included, I think everything that has been touched on is important for people to understand the changes that can happen to their bodies and their minds as they grow. While not strictly to do with puberty, I do think that the topic of consent should be discussed more even with younger children. It doesn’t have to go quite as in depth as it might for an older audience, but I do think bodily autonomy is something that’s important for people to learn as early on as possible.