Comparative writing on initiation has been shaped for a century by a three-stage model of separation, transition and reincorporation, proposed from a survey of ethnographic reports and applied since to almost everything. The model is a real observation about the shape of many rites. It is a poor guide to any particular one, because it describes the choreography and says nothing about what the community thinks has changed.
Look at what is transferred and the cases separate sharply.
In Jewish practice nothing is transferred by the ceremony at all. Obligation arrives with the birthday; a boy or girl becomes bar or bat mitzvah whether anything is held or not. What the ceremony does is display the new obligation being exercised, usually by reading from the Torah in public for the first time.
Upanayana transfers a right rather than a duty: the sacred thread admits its wearer to the study of the Veda and, in the traditional formulation, to a second birth. Both the caste restriction on who may receive it and the historical exclusion of girls are argued about within Hinduism now, and reform movements have conducted it for women and across caste lines since the nineteenth century.
Confirmation transfers responsibility for a profession that was previously made by proxy. That is why it sits so awkwardly in churches that also baptise adults, and why its typical age has drifted by years in either direction depending on whether a given church treats it as a completion of baptism or as a personal decision.
Amrit Sanchar transfers membership of a disciplined body with visible obligations. It is not tied to adolescence, is undertaken by adults as often as by the young, and many Sikhs never take it.
Temporary novice ordination in Burma and Thailand transfers, in doctrine, nothing permanent at all, since the robe can be handed back after a week. In social fact it is the thing a boy does to become an adult, and the merit is understood to go to his mother.
The one feature nearly all of them share is that they are not tests. The near-universal shape is instruction followed by a public assumption of duty, and the ordeal that popular accounts expect is far rarer than those accounts suggest.