They are not Child Ages, Child Ages = GreatZero. Fan ages are "OwnedBooks", if you want to the fan ages to be public, you'll need to use kBasic link, add the age to the lookup server's public age list, and sync that info from the lookupserver to the player's vault. I am currently working on doing this for the Watcher's Sanctuary, but have had little sucsess (namely because I don't have much time, but Sprink Break is coming soon). I'll work on this a bit longer and share my findings with you.
EDIT: After I do the Watcher's Sanctuary, I can work with the Ahra Prats team to make Ahra Pahts public