Always people have different opinion when they see some thing. Did god gave same brain and eyes to human but just changed their thoughts? No it is not. People will differ in thoughts or opinion about a thing. Is it good? Yes it is good which will help each other to have much option to decide the right one.

If we have same thought like others, only one person is enough to think.
In many organizations they have teams were they will have different opinion to take decisions. Even in Catholics have two kinds of group in cathedral. Where the discuss the positives and negatives of an object. In life always you take the decision but grab the options from others.