Converting CC To Be Use On Child Sims

Hi.

If you will manage to fit the mesh exactly as it fitted the adult body, then no. This would be easier to accomplish by resizing the rig instead of the mesh itself.
If you are converting fem frame to child, you need to remove breast bones and flatten the chest. You may even need to edit textures, depends on how loose the garment is.
Regardless, you need to replace all nude body parts from your garment's mesh


If its a simple item, then no, you just clone cc, regategorize and it should be fine. Problems may happen with complex items ( fullbody outfits with shoes)


In short, for the hat:
- clone an original hat, recategorize, export all lods;
- open lod0, append other lods;
- select all meshes, switch to edit mode, resize;
- save this blend, open lod1, delete the mesh, append the modified one from LOD0, save. Repeat with other lods;
- open lod0, delete lod1-3 meshes;
- import back into the cloned package

for the garment:
- clone an original garment, export all lods, naming them adult_lod0, etc;
- recategorize, export all lods again, naming child_lod0, etc;
- open child_lod0, save under a different name ( progress.blend);
- delete the garment, append it from Adult_lod0, rename rig.001 to Adult_rig;
- append other lods from adult_lodx, delete all appended rigs and bone_bone_shape, so that only the original rig and Adult rig remain;
- select each mesh and choose Adult_rig in the Armature modifier;
- select all meshes, switch to edit mode, delete body parts from all of them at once;
- select Adult_rig, switch to pose mode, resize it to fit the child's body;
- once done, apply the Armature modifier on all meshes, delete Adult_rig;
- save this blend;
- open child_lod0, delete the garment, append the resized one from progress.blend, copy the needed body parts from under the child's rig, remove doubles on them, delete everything covered by the garment, join with the garment, check the cut, save;
- repeat for each lod