<P> Challenge 21 and Challenge 25 are part of a scheme in the United Kingdom , introduced by the British Beer and Pub Association ( BBPA ) , with the intention of preventing young people gaining access to age restricted products including cigarettes and alcoholic beverages . Under the scheme , customers attempting to buy age - restricted products are asked to prove their age if in the retailer 's opinion they look under 21 or 25 , even though the minimum age to buy alcohol and cigarettes in the UK is 18 . </P>
<P> Challenge 21 and Challenge 25 are part of a scheme in the United Kingdom , introduced by the British Beer and Pub Association ( BBPA ) , with the intention of preventing young people gaining access to age restricted products including cigarettes and alcoholic beverages . Under the scheme , customers attempting to buy age - restricted products are asked to prove their age if in the retailer 's opinion they look under 21 or 25 , even though the minimum age to buy alcohol and cigarettes in the UK is 18 . </P>
what is the age limit to buy alcohol in uk
what is the age limit to buy alcohol in uk
18
18