I do twist outs on my grand daughters hair using flax seed gel and it does wonders. She has thick curly hair and usually squirms at the sight of a comb. He is the link to the YouTub video showing how I did it.
27 Curly Girl Method Flaxseed Twist Out on Kids Hair - YouTube
Also to make hair much more managable, conditioner, conditioner, conditioner is key. Keep hair moisterized. Use less shampoo and more co-washing.