How old do you have to be to vape in the UK? Find out here. Children in Britain aged 17 and under could be banned from buying cigarettes for life. The Tobacco and Vapes Bill, passed in parliament on Tuesday (Apr 21), is awaiting royal assent. It Disposable vape ban: I buy my kids vapes to control their addiction People born after Dec. 31, 2008 would be banned from ever buying cigarettes in the UK under the Tobacco and Vapes Bill passed by Parliament. The buying age would rise every year, Vapers overtake smokers for first time in Great Britain