Report finds 'disturbing failure' to stop underage smoking, vaping in U.S. Gen Z's vaping habits could be making them look older: docs A study by the Department of Health Service Support (DHSS) showed that there is an ongoing and disturbing trend of e cigarette or vape use among underage children, with the youngest being 6 How Old Do You Have to Be to Vape BOOST! Say no to vaping. 10 15 vape puffs are roughly equivalent to one cigarette. We want to encourage and support families to have open and engaging conversations with young people to Can I Vape at 16? What is the Legal Age for Vaping in the UK?