That few today possess such know - how is borne out by a study conducted by The National Marriage Project, a research initiative of Rutgers University in New Jersey, U.S.A.
याचे एक कारण म्हणजे, विवाहात काय काय समाविष्ट आहे याच्याविषयीचे अपुरे शिक्षण असणे.