Gong Tao was just saying that, it actually has nothing to do with him how the Cai Family elders will fare in the future.
The truth is that the Cai Family elders always said that a married daughter is like water spilled out, so the matter of taking care of them in old age has nothing to do with the daughter.
"If they regret it in the future, that's their business. They have pensions, as long as there's money, Guoqing won't be excessive."
No matter how filial Cai Meina is, she never thought about taking care of her parents in their old age; that's the son's responsibility.
Moreover, if she really brought her parents over, who knows what trouble the in-laws' side would stir up, not to mention if her uncle and others would make a fuss.
Not to mention Cai Meina is worried that the family's things might be secretly sent to Cai Guoqing, the son they're most satisfied with.