How civilization taught us to be more friendly towards one another?

Question: How civilization taught us to be more friendly towards one another?

In present time one friend contected with another friend only on the basis of trast, loyalty, faith so now at the time college students groups strongly. connected with each other only on trust and out of the  college group person is not trustable. it is best example of civilization and the second example of civilization is the relationship between the child and her mother and father, now in the modern relationship between the child and her mother and father is friendly so civilization teach all of us to make true connection with each other.