Ecological balance, gender balance, equal rights ...
In a family, if the parents are strong, then the child is either extremely weak, or has always longed for strength in his heart and cannot be strong at home. Once he can fight for strength outside, he will inevitably show strong possibilities. So, there are two possibilities.
Of course, growing up under the strong education of her parents for a long time, her character is really weak, because she knows that only obedience can get the best results and the survival of the fittest.
Grandpa will feel distressed when he sees his granddaughter's weakness, so he will try his best to meet her requirements, which is what you call arrogance.