Disobedience is essentially a prideful power struggle against someone in authority over us. It can be a parent, a priesthood leader, a teacher, or ultimately God. A proud person hates the fact that someone is above him. He thinks this lowers his position.
When our children obey the Lord and go to the temple to receive their blessings and enter into the marriage covenant, they enter into the same order of the priesthood that God instituted in the very beginning with father Adam.
If you are a single parent, make friends with others in similar situations and develop friendships with married couples. Counsel with your priesthood leaders. Let them know of your needs and wants. Single parenthood is understood by the Lord.
Surely no child should fear his own father - especially a priesthood father. A father's duty is to make his home a place of happiness and joy.