Quote Originally Posted by Kobal2fr
Princesses spawned with zero charm is a bug in the traits code, it's not intended. Princesses were intended to be like diplomats, start with 1-3 basic Charm + good/bad from their fathers.
I've been digging around in the traits file, and it's amazing how obvious some of the bugged things are, like the "guild bonus for agent" triggers being totally inconsistent for different agent types, and starting piety for family members never happening because it's set only for generals. It appears in this case that the various princess init triggers just aren't there... so yeah, no wonder it doesn't work.

For those of you who might not have heard, Kobal2fr has a CherryVanilla mod that deals with this and other obvious miscues in the traits code, while avoiding most balance tweaking that players might be more opinionated on. If you want your traits to work right, but without a lot of unwanted balance tampering or tweaks, then this is definitely what you need! Props on a great job from what I've seen, Kobal2fr, you've managed to create a traits file that everyone should be able to embrace.