Answer:
because it will improve your listening skills and understanding of other points of view
Step-by-step explanation:
Throughout history, knowledge has developed from contrasting and comparing different ideas and points of view. In modern societies freedom of speech has played an important role as it allows different groups to express themselves. In a group discussion a similar thing happens. By respecting and allowing other thoughts and ideas you can learn new things, things that you maybe ignored or that you oppose. A problem that seemed clear to you, can appear innovative or challenging. By carefully listening to these points of view you will develop your listening skills as you need to fully undestand them in order to counterargument in an effective way. New knowledges will be formed and a deeper undestanding of different topics will be achieved.