What are the consequences of hitting a child while driving, with the inability to determine their fate or condition?

The driver is responsible for any physical or financial harm he causes to others, unless the accident was due to the fault or transgression of another, or due to an irresistible force majeure, or due to the action of the injured party himself. In the case of the inquirer, the driver does not bear responsibility for the harm that befell the child, because the harm resulted from the child's own action, not from the driver's action or fault.