Although Dai Qingqing was not a favorite in the Cai Family, her grandfather was the patriarch of the family and she was his favorite.
As for Cai Family's company, it was a famous presence in Country Z. Hence, Cai Wenhui and Cai Wenling could not do anything about Old Master Cai doting on Dai Qingqing.
Usually, Cai Wenhui would only run her mouth at Dai Qingqing, not daring to inflict any physical harm on the latter. The reason being she was scared of Dai Qingqing ratting her out to Old Master Cai. By then, Cai Wenhui was done for.
As for Dai Qingqing, she could be lacking everything in the world but not money, because Old Master Cai pampered her.
It was why Dai Qingqing suggested having fun at the ice rink after she insisted on paying for Yun Jian and the men's meal.