Vancouver

Why does it seem that people actively avoid expressing disaagreements on what somone says when they are out somewhere having a conversation? Why arwe people more concerned about trying to sound nice rather than being honest? It's not provactive or antagonizing to simply say "I can't agree with you on that, I disagree." I suspect that if someone articulates the reasoning behind their disagreement, a lot of people would not be bothered by it, unless someone wants everybody to believe the same things and are easily disturbed by contrary points of views.