How so?
Here ... to put it into more practical adult Catholic terms, when I attended catholic school as a child, the Sisters admonished us to never attend services at a non-Catholic church. At the time, I did not know anyone who wasn't Catholic so it was a non issue. Later, in my young adult years, a coworker invited me to attend Syunday services at her Presbyterian Church. Flashback to Sister's words! My coworker was in a state of personal distress and I had suggested that she return to Church. There was no way I could tell her to go without me so, using my free will, I accompanied her to that Sunday's service. The service bore a resemblance to our Catholic Mass until some woman appeared in the Sanctuary during the Offertory, wearing a very transparent outfit and danced. (this was 30+ years ago!) I was completely scandalized and fully understood Sister's admonition.
Shepherds guard their flocks but the sheep still have free will. Since closing 5 of the 6 Catholic parishes in a nearby community, many of those Catholics who lost their homes have now 'strayed' into a vibrant Evangelical church. Once we complete the transformaton of the old Methodist Church into a Catholic Church, I plan to go door to door to invite the Catholics back home.