They are probably all suffering from low self-esteem due to their last name. Their grandparents should have changed it to Hough so their children could grow up normally.
Ima Hogg (July 10, 1882 – August 19, 1975), known as “The First Lady of Texas”,[1] was an American society leader, philanthropist, patron and collector of the arts, and one of the most respected women in Texas during the 20th century.
https://en.m.wikipedia.org/wiki/Ima_Hogg