By the time young adults are confirmed in the Roman Catholic church, most have already lost their faith. When did the church start that practice? The Eastern churches confirm and commune infants at their baptism, hence, they are fully sacramentalized. My Eastern branch has been latinized withholding first communion until 2nd grade but our priest wishes to be allowed to return to the ancient practice.
As a witness to a (Roman Catholic) confirmation recently it was scandalous, young woman were told to dress modestly. Plunging, loose necklines, bare naked backs and too short and too tight dresses were the popular choice
You would do a justice to fully sacramentalize an infant then wait until after the evil one has a stronghold on their heart and minds.