Thread:KemonoTitan/@comment-37079606-20181103225312/@comment-34196931-20181104110520

Check the Trivia section for the other characters in the manga/anime and it'll give you a good idea as to what information we consider as necessary to be added in Trivia. Basic biological information is present in the character's infoboxes and as Kemono mentioned, it'll open up a can of worms and it can't just be done for main/frequent characters as that'll count as an inconsistency. If you have plenty of time, there are a lot of other areas you can work on and improve the quality of the Wiki.