Gen Z's vaping habits could be making them look older: docs How Old Do You Have to Be to Vape BOOST! Can I Vape at 16? What is the Legal Age for Vaping in the UK? 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? Report finds 'disturbing failure' to stop underage smoking, vaping in U.S.