A survey for Catholic counselling service Accord has found that fewer than one in three people think that "couples who have children ought to be married".
Only 51% said that most married couples they knew had "happy healthy marriages".
That's down from a figure of 60 per cent the last time the survey was conducted in 2006 .
This latest survey has been released ahead of the referendum on same sex marrriage - and includes a new question asking if people believe a child is more likely to grow up happy if raised "in a home with a loving mother and father".
On the National Lunchtime News, Tom Swift asked the chairman of Accord, Bishop Denis Nulty why this question had been included this time around: