The bulk update request #12375 is pending approval.
change category character_age (35) -> meta
Reason: We have meta tags character_name and species_name, for when characters in an image are labelled with that information. Those meta tags are separate from the general tags name_in_dialogue, name_drop, name_in_narration, species_in_dialogue, etc.
For consistency, the age tags should be treated the same way: character_age as a meta tag, and age_in_dialogue and stated_age as general tags.
Updated