Only install files for packs that you have installed. The files are organized by pack in the folders so you can pick and choose according to which packs you have. Put folder in Documents > Electronic Arts > The Sims 4 > Mods.The hair is genetic, meaning that children can inherit these hair colours from their parents. I’ve recoloured all the child and toddler hair in the game (base game + all packs thus far) to match the 6 unnatural colour swatches available to adults purple pastel, hot pink, dark blue, turquoise, green, and white. I was so frustrated by this that I learned to recolour hair just so I could fix it.

I just had one problem kids and toddlers don’t have any unnatural hair colours so they couldn’t inherit the unnatural hair colours of their parents. I’m not much of a CC creator but a while back, I wanted to play a perfect genetics challenge in The Sims 4. Genetic Unnatural Hair Colours for Kids & Tots (Base Game + All Packs)