text: You get more knowledge on the topic you are asking opinions for. More knowledge helps you make a wiser decision. If you are choosing your future career, advice/opinions will give you more knowledge on what you can chose and it will help you chose the best job for you. It changes the way you think. You hear all those opinions which tells you what people think and it could change the way you think. It helps approach a thought in a different way. When you ask for advice you are getting knowledge and it makes you approach a thought in a different way. More knowledge is important because it helps you make a wiser decision, changes the way you think, and helps approach a thought in a different way.