Is it logic or anti-logic? Before the implementation of family planning in the 70s of the last century, each couple had an average of 3-4 children, when the lack of food and clothing was absolute, but the children were fed. this

Is it logic or anti-logic?

Before the implementation of family planning in the 70s of the last century, each couple had an average of 3-4 children, when the lack of food and clothing was absolute, but the children were fed. These children basically have one child per family because of family planning, and to be honest, most of them are reluctant, but they focus on raising the generation of only children. This generation is a generation with extremely rich material life, and it is also a generation with an unprecedented high family status. It is said that the next generation of the only child should be more materially rich, and because the fathers recognize the sequelae of family planning, they are willing to let them have more children and help them bring up children. However, the reality is the opposite, they do not want to give birth, and they are too lazy to even get married.

I don't know what's wrong with this logic? Or is this generation thinking against logic?