Copy and pasted from here: Opinion: Parents Must Talk With Teens About The Dangers Of Addictive E-Cigarettes
"In addition, youth and young adults who use e-cigarettes have an increased risk of trying regular cigarettes or other tobacco products. Nicotine can also prime the brain for addiction to other drugs."
I believe this is true but not because these teens were using e-cigs. They are up for using something, e-cigs just happens to be one of them. My opinion only.