Actually, Luo Yang wanted Shuiyue to drive, but Tang Guihua and An Yuying aren't familiar with her.
If Shuiyue were to drive, Tang Guihua would most likely suspect that Luo Yang has found a new love.
If Tang Guihua starts to use her interrupted cultivation technique in the car, Luo Yang can only suffer.
Thus, having Qiao Yousi as the driver avoids a lot of trouble.
With those beauties sitting in the bus, Luo Yang really worries they might break into a fight.
It's important to know Hua XiYi and the grandmother-granddaughter pair are from Jiuyang Hall, Zhang Jing is from the Eight Immortals Hall, Shuiyue and Jinghua are members of Skull Fortress, while the three Gu sisters are followers of the Ten Thousand Souls Sect.
These beauties, we could say, have irreconcilable enmities.
