And herein lies the biggest problem. Many Catholics resent being told what to do. In fact, the beauty of church authority is the protection it provides. For example, the Catholic Church never approved artificial birth control. Now, 50 years later, science is beginning to see the impact of hormonal medicines on the body and the environment.
Science would have seen much more quickly if "science" were not an ideology of which values-free unlimited sterile sex is a major element.
But that's off topic, so I'll quit here and go to Walmart.