Qiao Qiqi knew very well that those three cousins had decent character. Even if they weren't clever, they could stay well-behaved and earn money by finding a small official position.
As for the ones sent back, they found Qiao Yaozu that night. Qiao Yaozu explained a bit and mentioned the expenses for repairing the ancestral hall, so the Qiao Family members wisely kept quiet.
Not that they left no one behind; they originally wanted to send seven, but left three and returned four. Why? Because obviously those four had issues.
Moreover, one's own children are known by their own family. Those four indeed were not well-behaved, while the three left behind were good kids who minded their own business.
...
When Qiao Qiqi returned to the company, Chen Zhen told her that Wang Yuxin had formed her own company, and was exploiting the company's establishment for her persona.
After Qiao Qiqi heard this, she frowned, not expecting Wang Yuxin to change so drastically in such a short time.
