The main character in Breaking Bad, Walter White, was diagnosed with inoperable lung cancer in the pilot episode. The cancer prompted him to start cooking and selling methamphetamine in order to make enough money to provide for his family in the event of his death. During the course of the series, Jesse Pinkman, Walter’s former associate, has done many things that would land him in jail and even kill people, but one thing he doesn’t do is use drugs. He does, however, have a brother named Jake. Jake is a Rhodes Scholar who studies oboe and math and does his homework, so it might seem strange that the two brothers never interact on screen. However, there’s a very good reason for this.
The writers of Breaking Bad want to show the consequences of drug addiction as well as a man’s selfishness. They do this by showing the destruction of families and relationships as well as numerous tense and upsetting events, like Skyler’s suicide attempt, Hank’s death, and Walter poisoning Brock with the Lily of the Valley plant.
As a result, it makes sense that Jake doesn’t want to have anything to do with his older brother. Besides, Jesse’s brief stay at his parents’ house ended badly and ruined his life as well as the lives of two people who trusted him. Despite all of this, it still seems unlikely that Jesse will ever use drugs again. It’s possible he could eventually end up in jail or dead, but it’s highly unlikely that he will return to his meth-cooking ways.