I think people are afraid of being nice people because they get hurt too many times. Also just because your nice and kind to others, does not mean you'll get the same in return. As a matter of fact, if your kind and nice , you might get the opposite in return. Don't let this stop you from being a genuinely nice and kind person. It will sour your spirit, it will turn you into a bitter person. You just have to be smart, and pray constantly.