I would like to add few comments with Sibli sir. Before that, I am grateful to Sibli sir for arising this fantastic topic in the forum. thank you so much.
In this world, everything is going properly as we see in our eyes. but in the back side of this effort we usually ignore. Its easy to see something happen but tough to plan, think , implement. here comes the importance of knowledge, expertise, dedication. to achieve these virtues, one must need to study to learn.
Sometimes we tell, classroom doesn't provide the practical learning. I am somewhat agree with this statement but to have the abstract knowledge, one must have to have the empirical background that is the basement of learning. My question is, where will one can develop the knowledge base/foundation? Its very simple to answer. It's the institution are providing this basement to all of us.
To learn something properly, there should have the proper environment, system and structure. Classroom is meeting this quest to all of us. We can have the required flavor to learn the knowledge into the classroom. Sometime, group learning is more easier than alone. We can explore new ideas, thoughts into the classroom which sometimes is not possible to discover. So, classroom is the perfect place to develop our knowledge base.