How secondhand smoke, thirdhand smoke & vaping affects kids Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Vaping is often marketed as harmless. Flavoured. Trendy. Safer than smoking. But the reality is far more serious, especially for children and teens. When kids vape, they are inhaling addictive nicotine and Does Vaping Cause Lung Cancer?