Suicide might be a way out for one person, but the pain will be passed on to many more, which they'll suffer their whole life.
I know of one family whose teenage son committed suicide a couple of years ago for reasons unknown. His parents were never the same after that. Their marriage struggled and they were so unhappy. 2 years later the mother committed suicide because she couldn't bare the pain of losing her son any longer. Now the father is left alone, with a son and wife gone forever. They may be at rest, but he will forever bare their pain.