Hi,
Quite a few people this side of the pond simply refuse to deal with minors because of the inability to form a binding legal contract. That fact removes a lot of protection and safegaurds for both sides sadly.
If anything at all went wrong then the fact there is no contract would become really important really fast.
I suspect if your parents were to actually get directly involved and purchase the animal in their name then there would be no problems - but that is just supposition on my part.
dr del