Why was the relationship between Monkey Kaka and her Dad separation?

He said his self in this video Kaka was becoming of age. She would be harder to handle and take care of had she stayed with the family. As much as I liked watching her, the fact is she was growing up and would need to be with her own kind again. No amount of missing her or complaining is going to bring her back to the home she knew. Best to just let her be now and let her find her own family.