Challenge 21
Challenge 21 and Challenge 25 are part of a scheme in the United Kingdom, that was 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.