BDBD is Proverb 17:21

The two factual statements about the emotions a foolish son or daughter brings his father or mother are obvious. No one can deny them. The parent’s self-query is, “Can I prevent this or change the course attitude of my son or daughter?”

Apostle Paul instructs fathers, “Do not embitter your children, or they will become discouraged.” (Colossians 3:21) This is to arouse feelings that are unpleasant in the child. He also wrote, “Do not exasperate your children; instead, bring them up in the training and instruction of the Lord.” (Ephesians 6:4) Exasperate means to make them angry or impatient, to annoy them.

Children are born with characters that can be nurtured into stable mature adolescents and adults or ones that harbor destructive emotions. The child who has not been taught by the parent to bridle emotions and thoughts is the result of the parent. The child whose parents are focused on self-gratification and are absent from their life is one who has not practically learned these important emotional life skills. Parents who love their spouse in view of their children are examples of the way to have positive emotions pleasantly affect living as much as when they experience stern love. Actions teach better than words.

Wonder why an adolescent brings grief and no joy? Look to thyself parent.