If she were to go to the capital with her son, it would cost her money to rent an apartment. Her meals incur expenses too. When added together, it was a significant sum.
Qiao Nan wasn't willing to fork out money, and she couldn't possibly ask Chen Feng to pay for it. As a mother, she couldn't possibly ask her schooling son to pay for her expenses while she lazed around at home.
In front of Qiao Nan and Ding Jiayi, Qiao Zijin lacked any sort of shame and normal worldviews.
But Chen Feng was special. As long as it concerned Chen Feng and his money, Qiao Zijin's worldviews seemed to be much more normal.
She couldn't spend Qiao Nan's money, wasn't willing to spend Chen Feng's money, and was reluctant to spend her own money.
After giving it some thought, it seemed better for her to remain in Ping Cheng. At the very least, she had a roof over her head that belonged to Chen Feng. He wouldn't demand rent from his own mother.