"For this reason, the deliberate choice to exclude children from marriage is one of the grounds for declaring a marriage null in the Catholic Church."
Wow! I'm sure glad my wife and I aren't Catholics then. When is the RCC going to make anullment mandatory for childless couples? I hadn't heard that they were.
Further, all those priests, there. They are all childless. The nuns, too. I guess they're a waste of air, too.
Thomas Aquinas would be ashamed of your logical processes.
The Church's jurisdiction doesn't apply to non-Catholics. If you were to attempt to enter the Church, you would have to have your marriage blessed, since if, at the time of your marriage, you had planned to exclude children from your marriage.
Further, all those priests, there. They are all childless. The nuns, too. I guess they're a waste of air, too.
Priests in the Latin Rite of the Church, and religious brothers and sisters, aren't married. Therefore, Church teachings regarding marriage don't apply to them.
Unmarried Catholics aren't obligated to marry and have children. In fact, Jesus recommends celibacy for those who are so graced:
Matthew 19:12"For some are eunuchs because they were born that way; others were made that way by men; and others have renounced marriage because of the kingdom of heaven. The one who can accept this should accept it."