No. Addiction is the body's physical need for a chemical/substance. This need has been seen in newborns and even the fetus in the mother's womb. This addiction problem, however, is the "physical" addiction, not the "psychological" addiction. To develop a psychologic addiction, one must have greater brain function; the "want" vs. The "need.".
Yes. The brain in its young years has more neuroplasticity therefore easily altered. Chemical dependency starting at a young age also is commonly associated with factors such as bipolar disorder, genetics ie alcohol and opioids , sexual abuse depression all contribute greatly to the disease of addiction.