Most Kin - even those who are descended from nocturnal animals - lack any form of 'night vision'. There's the odd person here or there who still has it - sorta like how Kaeden has a high rate of regeneration while most other Geckos don't - but by and large, they all still need some form of light to see in the dark. Thankfully, when 3/5ths of your party are magic users, there's always a handy light source to be had *somewhere*.

-Reyn