I know this is impossible because many people cannot help but vocalize their own fears and insecurities and try to bizarrely compensate for their own failings by weighing in on the lives of others. But just imagine the possibilities.
Right now, this is one of the biggest obstacles to world peace; whether it be cultural, racial, religious or sexual prejudice. It is the fuel that makes the world run. Just think what a change it would be to let your neighbors live in peace and allow them to lead an existence with the same rights, courtesies and considerations you would like extended to you. But that would take secure people which the world is not replete with.
It is very simple really: if you cannot relate to the life of another person, you have not earned the right to comment on it. You have not grown up like them and hence you cannot possibly understand their own unique set of challenges.
I like what it says in the New Testament under Matthew where Jesus says: “You hypocrite! First take the beam out of your own eye, and then you will see clearly to remove the speck from your brother's eye”