text: The second reason for getting multiple opinions is that everyone has a different one. If you get the opinion of only one person, you have no idea if that opinion is the majority opinion or not. Sure, it is more likely for them to make up the majority, but they could end up being part of some group that makes up under 1% of opinions. If you want to get an accurate opinion on something you have to ask a lot of different types of people. The more people you poll/question, the more accurate of an answer you get.