As an orthodontist i see many panoramic x-rays of children as young as 8 with the earliest signs of wisdom tooth formation. Teeth take a long time to develop and erupt. Your top front permanent tooth, for example, that came in when you were about 7, began to form before you were born.
Promisee Definition: A person whom is to be the beneficiary of a promise, an obligation or a contract. A person whom is the recipient of a promise, an obligation or a contract, received from the promisor.
Linguistically a promise is much more than simply using the word  promise  in a sentence. A promise is the final link in a chain of linguistic actions, and as a final link it needs to be preceded by other linguistic actions. A promise can occur in two ways, being initiated either through an offer or a request. request is the first link in the linguistic chain of making a promise. As was seen in the example of making an offer, a promise always involves more than one person. A promise is a combination of two linguistic actions, each one made by a different person.