There is roughly zero percent chance I would have paid any attention to online lectures/classes when I was in grade school or high school. I couldn’t even pay attention to online classes during grad school trying to get my Masters. I already didn’t do my homework or study for tests in school, so the only way I learned was from being in person and listening to the teacher. If I would have been expected to get most of my learning from online courses, I would be in a very different place in life right now.