UK passes landmark Tobacco and Vapes Bill to create a smoke free generation. Anyone born on or after Jan 1, 2009 may never legally buy cigarettes. Samah Qundeel (@samah_qundeel) explains the new How Old Do You Have to Be to Vape in the UK? How Old Do You Have to be to Vape? Age Limits in Various Countries 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,