Don't shoot the messenger!
If the content found here contradicts anything in the Catechism, then specific fraternal correction is welcome and changes will be made to harmonize the following essay with the ageless and sublime teaching of the Church.
1652 "By its very nature the institution of marriage and married love is ordered to the procreation and education of the offspring and it is in them that it finds its crowning glory."
Children are the supreme gift of marriage and contribute greatly to the good of the parents themselves. God himself said: "It is not good that man should be alone," and "from the beginning [he] made them male and female"; wishing to associate them in a special way in his own creative work, God blessed man and woman with the words: "Be fruitful and multiply." Hence, true married love and the whole structure of family life which results from it, without diminishment of the other ends of marriage, are directed to disposing the spouses to cooperate valiantly with the love of the Creator and Saviour, who through them will increase and enrich his family from day to day.1653 The fruitfulness of conjugal love extends to the fruits of the moral, spiritual, and supernatural life that parents hand on to their children by education. Parents are the principal and first educators of their children. In this sense the fundamental task of marriage and family is to be at the service of life.
1654 Spouses to whom God has not granted children can nevertheless have a conjugal life full of meaning, in both human and Christian terms. Their marriage can radiate a fruitfulness of charity, of hospitality, and of sacrifice.
Of course, sometimes situations beyond the control of any one person—death of a spouse, loss of both parents, spousal abandonment, etc.—constitute an exceptional or extraordinary circumstance whereby a child or children must be raised by a single parent or his or her grandparents or by foster parents. These exceptions require the support of the parish community, a community of faith in which children are nurtured according to the wisdom received from God. Good can come from uncertain and even bad circumstances if God occupies the centre of people's lives and people ask for the grace to raise a child in difficult or exceptional circumstances.