Suicide was around since the dawn of humans, so I wouldn't say that it has any chance of becoming the norm. What we need ro adress and talk about are undelying mental health issues that have been taboo in the past. Accepting those issues and opening dialogs about them could reduce the rate if suicide.
Yes suicide is as old as man but the suicide as of then is not like these days happening. Suicide is not a norm but it is a man made. I always quote theorists who had propounded human nature. Such theorists are: Thomas Hobbes, John Locke, Rousseau etc. These people had given the different way human being behave. But best theorist of mine is Rousseau. Who said, Human being is good but the society he found himself corrupt him. Now concerning the OP, from the beginning of the childhood as human the person is good but as he grew up to mingle with others and in the process they hurt him so he become angry, and that process the child which was having the pure mind became wicked. And do the unthinkable. Now I may say in the contemporary society. Government is the major cause of suicides. Why because when someone has spent 4 to 6 years in university and at the end the person is hope in the society because there is no job for him to take care of his daily needs. so the best option for him is to die and leave the suffering world of dilemma. Therefore my suggestion to cube this social dilemma is for the government to provide guarantee jobs for the best graduating students in all level of education.