User blog comment:TimeForTheTea/Children/@comment-1613839-20180919122224

I have a ton of potential ones (from the Bagmans and cousins) but the only one I'm currently using is Aria who's been sorted. As I (or others) want to create/play them they'll get sorted as per the policy.

That being said I couldn't find the policy anywhere talking about what age they need to get sorted at. Best I could find (or at least remember) was an old blog from an old head of Sorting. I assume we're still using that as our policy?