This is a simple fix that patches the armors added by Immersive Armors to make it playable by children. I use a combination of RS Children Overhaul and Xvision Playable Children. Just make sure you use override with RS Children.
The first one has better looking children and the second makes all the base armors playable.

Requirements - Immersive Armors

Install - You must replace the .esp with this one and it will work. (I'm a noob so I don't know how to have it separate otherwise.)

Thanks to Hoothtrooper44 for the armor!

-deedlesndeedles