That is why the vatican is so worried about Latin Americas. They are losing members.
I knew a Jewish woman who was dying and 2 spirit filled Catholic docs prayed over her, she had a miracle healing and recovered. Then she was referred to an Assembly of God church. Her terminal illnesss, her Docs, her healing her getting the church where God wanted her were not accidents.
So I have taught a lot of home Bible studies. Including some who don't do English. If they are Catholic, after a few times I ask them what they were trained in order to be save. They just don't know Jesus saves. Mostly infant baptism, being a good Catholic etc.