"Zhen Yu! Uncle Gu has an ugly question to ask in advance! With your explanation, one sells vegetables and one delivers, what would your family do?"
"Uncle Gu, since I dare to propose, my family is indeed essential in this setup! Do you think, students would blindly trust your restaurant? Would they agree to deposit their money first and then consume?"
"Uh... this,"
"They'll surely worry that your restaurant might close down or someone might abscond, and without recharging their Prepaid Card, you'd be afraid they'll eat and run without paying! And my family is the third party in between the students and the restaurant—responsible for meal orders and monitoring both money transactions and accounts!"
"So if your family collects the money, students won't worry anymore?"
