But as a baseline, Ian Kerner, Ph D, LMFT, licensed psychotherapist, couple's therapist and author of "I've worked with a lot of couples who have strong relationships, and they met and fell in love quickly and really got to know each other's friends and family," Kerner says.
"They got to experience what it's like to live with each other or spend a lot of time with each other, go through some life cycle issues, like the loss of a family member or the loss of a friendship, or going to a wedding or funeral and really getting to see each other in a lot of different contexts and feel like it's a good match. You want to have some problems emerge and see how you deal with problems together.
This lasts anywhere from 2 days to 26 months, and then the couple will enter into the power struggle or the conflict phase of their relationship.
From the study's findings, women in 1971 were becoming wives at the low average age of 22.6, while men were saying their I do's at 24.6. Today, women are donning that white dress at an average age of 30.8, and their male counterparts are reciting their vows at 32.7 years old.