It is illegal to sell tobacco products to anyone under the age of 21 in many countries, including the United States. In these countries, the consequences for selling tobacco products to a minor may include fines, criminal charges, and the loss of a tobacco retailer's license. The specific consequences for selling tobacco to a minor will depend on the laws and regulations of the jurisdiction in which the sale takes place. It is important for tobacco retailers to comply with age verification laws and to refrain from selling tobacco products to minors to avoid facing legal consequences.