Okay, let's see I have to be 18 to buy them and then there is a little warning from the surgeon general on the box but in the meantime the tobacco companies are making billions of dollars off a product that kills 400,000 people a year. Yeah, good job.
E-cigs are the best thing that could have happened to wean people off of the cancer sticks.
Nicotine has never been proven to cause heart problems (smoking does). Nicotine except when given in too high a dose (overdose) has not been proven to be harmful.