The existence of intellectual beings (angels) is a logical necessity:
...I answer that, There must be some incorporeal creatures. For what is principally intended by God in creatures is good, and this consists in assimilation to God Himself. And the perfect assimilation of an effect to a cause is accomplished when the effect imitates the cause according to that whereby the cause produces the effect; as heat makes heat. Now, God produces the creature by His intellect and will (14, 8; 19, 4 ). Hence the perfection of the universe requires that there should be intellectual creatures. Now intelligence cannot be the action of a body, nor of any corporeal faculty; for every body is limited to "here" and "now." Hence the perfection of the universe requires the existence of an incorporeal creature...
Whether an angel is altogether incorporeal?
St. Thomas Aquinas
Summa Theologica
well, the same can be said for you, in your disbelief, and calling the child's family STUPID. i haven't heard you express regret for that unfortunate OPINION.