Like me, parents treat their children equally, especially the only child or girl, which is also the apple of their eye. There is no preference for boys at all. Girls also hold up half the sky, even surpassing boys in many aspects. So we never doubted our parents.
Of course, there are also some areas where you mentioned problems, and parents have doubts about their parents. These are all manifestations of backward thinking and attitude. As we all know, girls have many advantages. The simplest thing is that in filial piety, many girls are many times better than boys.