Dayuhan,
That isn't a problem, it is a challenge. You're living in the Philippines, so you may be out of touch with the reality of our education system. In many of our schools, especially in economically depressed areas the teachers are subpar, work in dangerous conditions, and the kids who desire to get an education can't (parents can't afford to send them to private schools). At a minimum this allows students to "augment" lessons in the classroom.
I saw a special where one school was using Khan Academy in the classroom. Obviously not a depressed inter city school, because every kid had a tablet and was taking math classes at their own pace, with the teacher monitoring their progress on her tablet and assisting students who were still struggling. She said it revolutionized teaching the results were outstanding.
As you well know a lot of people are self-educated, they key to learning is the desire to learn, then the environment. I'm not arguing your point, but simply pointing out that doesn't make this technique anymore obsolete than reading a book.
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