Legal analysis: Personal settlement and sale of foreign exchange only depends on identification, and there is no age requirement. According to the regulations of the State Administration of Foreign Exchange, the designation of individual foreign exchange business of domestic residents shall be handled by the Bank of China. Residents can purchase foreign exchange in the branches of China Bank under the following circumstances: traveling abroad, visiting relatives and friends, and exchanging foreign exchange with relatives and friends; Convertible to Hong Kong and Macao 1 ,000 USD or equivalent 1 ,000 USD; Going to countries and regions outside Hong Kong and Macao (including Taiwan Province Province) can be exchanged for $2,000 or its equivalent; Those who study abroad at their own expense or go abroad for medical treatment at their own expense can exchange US$ 2,000 or its equivalent in foreign exchange at one time when leaving the country; Individual residents leave the country at their own expense to participate in international academic activities and are employed to teach. If the inviter doesn't bear the pocket money, they will exchange money according to the standard of visiting relatives abroad.

Legal basis: Article 17 of the Criminal Law of People's Republic of China (PRC) * * * A person who has reached the age of 16 commits a crime and shall bear criminal responsibility. A person who has reached the age of 14 but is under the age of 16 commits the crime of intentional homicide, intentional injury, serious injury or death, rape, robbery, drug trafficking, arson, explosion or throwing dangerous substances, and shall bear criminal responsibility. If a person who has reached the age of 12 but under the age of 14 commits the crime of intentional homicide or intentional injury, causing death or serious disability by particularly cruel means, if the circumstances are bad, he shall be prosecuted with the approval of the Supreme People's Procuratorate, and shall bear criminal responsibility. If a person under the age of 18 is investigated for criminal responsibility in accordance with the provisions of the preceding three paragraphs, his punishment shall be given a lighter or mitigated punishment. If a person is not given criminal punishment because he is under the age of sixteen, his parents or other guardians shall be ordered to discipline him; When necessary, carry out special corrective education according to law. Article 17 If a person who has reached the age of 75 intentionally commits a crime, he may be given a lighter or mitigated punishment; Whoever commits a crime negligently shall be given a lighter or mitigated punishment.