Know your child and what they are capable of and really want to do. As a parent, commit yourself to the responsibility as well. Do research and learn with your child before you make any decisions. Pets are living beings and need care; they are not toys--if your child knows that and is willing to give the time and effort to care for the pet, and you're willing to help out too, you're probably good to go! Remember knowledge is the key for happy pet owners and a happy pets (of any kind).