Don't think that smoking tobacco or e-cigarettes is just a harmless endeavor to prove yourself cool to your so-called "friends". According to the gateway drug model, epidemiological evidence suggests that most illicit drug users report use of tobacco products or alcohol prior to illicit drug use.
And do you think that the corporations that manufacture these products care what happens to you? Of course not, sweetheart. You're just a tool they're using to line their own pockets. This time it's just a smoke, but what happens next time?