text: The last reason getting multiple opinions can help you make a better decision is, it can change you mind completely. If you had the idea of this one thing being a good choice and you only talked to one person you would potentially make a self biased opinion. If you talked to multiple people that have experienced what you are trying to decide on then you would maybe get your mind changed. Even if you think something is good or bad you should always talk to multiple people to make the best decision.