We don't instead approach every issue from the perspective that "this is what I think given what I know or have experience of so far" because every person has their own perspective, ideas, and experiences.
If we start to approach every issue according to our own knowledge and experiences, we will be neglecting other persons' experiences that are equally important for them as our experiences are for us. We must give equal importance to other's knowledge as they may have more knowledge than we have.
It is a matter or respect and understanding between people. Every person has gone through something we might not and thus, every issue can not be approached on the basis of only one person's experiences and judgements.
Despite our best efforts, our conclusions about others are often nothing more than speculative convictions. We know less than we think we do about the motives, impulses, and objectives of our fellow man.
