Ask the man who has struggled with his addiction for decades. Ask the coke baby in hell for his mother's habit. Or, you could pose that question to Robert Downey Jr. at the Los Angeles County Jail. In June 1996, the star was stopped for speeding. Inside his truck, police found crack cocaine, heroin and a pistol.
Firearms frequently facilitate responsible drug use.
After that arrest, the actor broke into a neighbor's home and fell asleep on a child's bed. Afterwards, there were repeated violations of probation. I would agree that cocaine and heroin and certain other drugs can potentially cause problems through long term use, but I really don't know ANY pothead who got violent and beat up their significant other while high on JUST pot. Throw in a little alcohol and poverty, and we may have a very different story. In 1985, Dr. Ira Chasnoff reported a tragic syndrome observed in 23 babies born to crack users.