I helped out at schools in the IT department and saw a lot of teaching methods that I didn't understand because I lacked both the context and the years of training that the teachers had. What I didn't have was an opinion on what those professionals should or should not do.
Wow, people really love jumping on this anecdote while completely ignoring the main reason I don't think YouTube should be in schools. Refer to all my other messages in this thread for more info. All these YouTube shills acting like I need to be an expert to oppose YouTube. Pretty fucking silly.