I attended recently an Alpha program (an international program (started in London)-videos and discussion about Christianity and God) and at our parish was comprised of Catholics (although open to all religions or beliefs).
https://alphausa.org/alphafilmseries/
I noticed that many did not have familiarity with many teachings and issues since their schooling. We had good discussions and that seemed to benefit all.
Perhaps the parish should do more in their bulletins?
Or have a Faith 101 night with instructions from the priest or deacon!
It works well in our parish. Huge turnouts — usually 100-150 people.