Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Vapes might be less harmful than traditional cigarettes and might help smokers quit smoking, but they are not safe, especially for individuals younger than 25 years old. Plus, much is still unknown Many young people who vape did not smoke cigarettes before they started vaping. But young people who vape are more likely to start smoking cigarettes than those who never vape. For help Coloradans Can't Vape In Public Indoor Spaces Anymore And Smokers Outside Have To Be Farther From Doors Do you know what's in a vape?