Why should you listen to people and why you should not!
Wow! That is somewhat contradictory. Let's keep it simple and short.
You should not listen to people because everyone speaks from their perspective. People are always opinionated. Their words are combination of their upbringing, culture, geographic, education, religion, experience and what not? Not each of these traits matches in two people. These combined create the DNA of our persona. And as you know DNAs are always unique to a person. So you are!
Now, You should also listen to the people because they speak from their DNA. Probably both of your DNAs match at least a few percentages. By listening to people you make sure you stay ahead in life. You make sure you don't make the same mistake which has already been made. By listening to people you continue the chain of information passing in human species. The most important aspect of every population!
Let's make it clear, To listen or not to listen? Listen to everyone but filter everyone's words. Don't take anything for granted. That's how nature is evolved. That's how the evolution works. Selection and survival of the Best.