text: Another reason why having a variety of opinions is important because someone will know the reason why a person's opinion was positive, negative, or neutral. Knowing why a person's opinion was what it was is important because the information could be be useful to someone. For instance, a new artist needs suggestions on where to buy the best art supplies. The artist's art teacher recommended him to go to Brand XY's art store, because it has nice staff, while his friend recommended him to go to Brand XYZ's art store because it has a wide assortment to choose from. Based on these opinions, the artist decides to go to Brand XYZ's art store because he needs the best art supplies and has an assortment to choose from.