Point of Law (UK):

"A child will still be able to 'own' a pet and a parent or responsible adult will still be able to buy a pet for a child under 16. However, the Act increases to 16 the minimum age at which a child may buy a pet on their own. A person under 16 will be able to buy an animal as long as they are accompanied by an adult. This prevents purchase on a whim without parental consent, and ensures that proper thought is given to the animal's care and welfare.

For these reasons, unaccompanied children under 16 cannot win an animal as a prize, except when accompanied by an adult. However, the person responsible for the animal will still need to ensure that their new pet is cared for properly"

http://www.defra.gov.uk/animalh/welfare/act/affect.htm#7

Thats the point i was trying to make aswell Crspin. You worded it better than me!