Every person has a different experience as they grow up, which allows room for billions of different perceptions about life. While thinking about this concept is not surprising, it is not something people regularly think about. People can have similar views but none of them are exactly the same as someone else and this is where our world runs into problems.
In order to stop people from butting heads, people would have to accept this reality that everyone is different. By accepting this and coming to an understanding, many fights could be dissolves easily instead of people always having to be right.