When is the right time to serve your kids ayahuasca?

My sons and daughter always got a bit on their forehead from Julio; after a time or two of that he'd put a drop on their lips; another time or two he'd let them wipe the cup after everyone drank and lick their fingers. Madeleina did that when she was maybe 3 or 4? Marco finally drank a full portion at about 13 or 14; Italo at probably 15, and Madeleina, who is the best assistant in ceremony in the world, still has not asked for a portion--and she's now 20. When she wants it, she will be served. BUTTTTTTT to go to your question: Marco and Italo and Madeleina were raised early on in Peru and so were around ceremony all their lives: Curanderos were always at my mother-in-law's house, sometimes five or six at a time--some were curanderos with ayahuasca, some were egg healers, or cuy healers, or smoke healers, or rock healers, or paleros, or any of a number of other types of healers. So they were exposed to this stuff daily, and would sit in ceremony with me at Julio's maybe 5 times a year. Now my wife's new babies, 8 and 11, have been in ceremony only about 4 times, and so if they suddenly, in five and two years, respectively, asked to drink a full portion, I would hesitate because they have not got the experience the others did. So I don't know that just serving a teen or preteen, based on their desire, is necessarily a good thing. Those people who have been around ceremony a lot, well, I think they get introduced incrementally, and so drinking the cup is not as big a leap for them as it is for others.