Answer:
He cannot enforce or demand for any right in a contract as he was not even supposed to gain anything in the first place.
Step-by-step explanation:
This is because they get unintended benefits from contracts. Incidental beneficiaries benefits from a contract even though that benefit is not part of why the contract was made. So these rights cannot even be enforced because none of the parties involved went into the contract for the sake of the incidental beneficiary. An incidental beneficiary only gets to benefit out of mere luck from two other parties therefore he cannot enforce or demand for any right. He is just a third party.