Though research does indeed indicate that twins might have a harder time finding a partner, there’s also much research indicating that the spouses of twins have a hard time of their own.
Simply so, do twins marry less?
It’s equally unsurprising that a Danish study found that twins are less likely to get married than non-twins. As twins have a partner from birth, the study suggests that they may not have the same desire for marriage as singletons.
Also, why twins are so close?
Identical twins share a particularly intense bond. They are the result of one fertilized egg splitting into two, giving them identical DNA. (Fraternal twins are the result of two separate, genetically different fertilized eggs.) As a result, identical twins are as close as two people can be.