Perhaps the good cardinal might take a look at Christian Family Movement as it was presented to us in the 1960's. At that time, a new young priest in our parish selected 5 mature couples, introduced them to the format which consisted of meeting once every two weeks in each other's homes. Each couple was issued a study guide for the upcoming evening with various Catholic/Christian themes and questions designed to engage husband and wife prior to and their answers then shared with the group.  A simple action was chosen for the following week.  Light refreshment was offered after the discussion.  The meetings, not only engaged us in timely topics about ways to better live our faith and form stronger families, but encouraged outreach into our communities as well. The original cell group leaders eventually helped new cell groups emerge, serving as excellent Christian mentors for the formation of  younger couples.  Our most treasured friendships & memories were born from CFM. (info on line).