Children can use the fabricator by TheTreacherousFox at Mod The Sims 4

This new mod opens the opportunities for kids-sims to get fabrication skill, grow it up and also to craft some different stuff on the fabricator.
Kids can give crafted items as gifts, convince to install the fabricator and brag about it.They can scrap and resume it too.
As usual the most of the crafted items can be found in the family inventory.