Should they? I mean standard lecture format is not a very effective medium. You have to have an uninterrupted concentration on the lecturer to understand the to

Should they? I mean standard lecture format is not a very effective medium. You have to have an uninterrupted concentration on the lecturer to understand the topic. But this rarely happens. You have to write, read the board and listen to teacher for understanding what is being said. I am not even going into the topic of feasibility, you have to pay the teacher, trust that he or she will be in her top condition. And you also have to go to the building for getting the lesson. As you've said, a better system could be built with less cost. And contrary to the popular opinion it would be better.