If you need help or someone to ask questions about the material, than it is very valuable to have access to a teacher or tutor. Sure, a lot can be self-taught.

If you need help or someone to ask questions about the material, than it is very valuable to have access to a teacher or tutor. Sure, a lot can be self-taught. But some material is just hard and many people will require a more knowledgeable/experience person in that subject to help them grasp it. However, if online learning could be paired with effective online tutoring, than I think you are absolutely right.