Psycomagic proposes this ceremony:
The day of the 13th anniversary, of the boy or the girl, organize a family reunion in his/her honour, during which the mother will offer him/her a rectangular piece of almond paste on which will be written “mom”; the father will offer him a similar rectangle on which will be written “dad”. The boy or the girl will have to eat them. Then he will be told: “You now entered our adult world. Starting today, without disrespecting us, you will have to treat us not like giant symbols but like creatures that resemble you, by calling us by our first names”. The mother will then give him/her a gift, and asking the child to thank her with the new “formula” (thank you Itzel for example). The father will give him another gift asking him the same thing. The parents will then answer the child:” From now on, if you call us “mom” or “dad”, we won’t answer; if you call us by our names, we will be at your entire disposition.”
If an adult wants to liberate himself from these 2 infantilizing terms that are too incrusted in his mental, he will have to write on a stone of at least one kilo “mom/dad”, then he will go to a road a little far from the city, made from dirt if possible, on which he will walk and throw the stone in front of him, the furthest possible; will take 3 steps and throw it again. In this manner, walking and throwing the stone, he will walk at least 3 km. He will coat it with honey before burying it.
From Alejandro Jodorowsky's book: Manuel de psychomagie.