These videos aren't with bad intent, but they don't really seem to carry a message. While sometimes fun to watch, the videos don't explain any reasoning behind the words "do" and "don't", and often lack explanation even in the "do" part to show how you "should be" doing anything. This is a bit useless to begin with if you want to learn more about art, but the word choice is also kind of unnecessary. There are no do's and don't's in art, there's rules to realism, but realism doesn't equal art, and it's not for everyone. Even in stylized art some realism applies, some aesthetics apply, but if you really boil it down to why these "rules" are applied it's because so you can translate it to something other people can understand, like, or appreciate. In true art, this doesn't matter, what matters is what *you* want to do. If you want to make realistic paintings, do it, if you want to draw stick figures, go for it. Just don't limit yourself by comparing yourself to what others are doing or trying to fit to other people's expectations.
I appreciate you all a lot, I'd love to see who you appreciate, please tag your art friend's account so I can check out their work! ✨