DEAR UNTHANKED: If I felt close to the daughter, I would attend the wedding. I would give her a gift, recognizing that it probably would not be acknowledged because the girls were never taught the social graces. But I wouldn’t preemptively penalize daughter No. 3 for the sin of omission committed by her sisters.

A few years ago, my cousin's daughter wasa married. We traveled, attended and left a generous gift. But we never got a "thank you." Same for her younger sister's wedding. Now the third daughter is getting married.

A few years ago, we were invited to the wedding of my cousin’s eldest daughter. Although my cousin and I are close, I barely know the daughter. We were invited only because my cousin wanted me there.

Dear Abby advices a person who believes that she should have received a “thank you” card from her cousin’s daughter’s wedding.