Here are reasons why you should be nice to people. You should be nice to people because they are good. They would do whatever to save people from death and torture. They would make the world a better place if they could. They would save the world if they could if the world should come close to being destroyed. If you meet a person that seems evil, remember that person probably thinks the people she or he is evil to are evil. So if you see a person attack another person, don't assume that the person doing the attacking is evil. That's why it's not good to judge. Just know that people do things for different reasons and that the reasons as to why they do them may just not be for evil reasons. Isn't doing something for an evil reason, the least likely of all possible reasons to do it? It's known people are more likely to do something drastic for what they believe are good reasons as suppose to evil reasons.