Having a strong relationship with an adult figure in ones life is vital for both child and parent. Seeing positive influences builds a foundation where the child knows that they are safe and protected by their peers. When parents are mistreating their children this develops a toxic relationship which continues throughout the child’s life.
So for further relationships, what would this do? Well there would need to be more reassurance as the fear of abandonment and abuse would be high. Trying to rewire your brain to accept love from others is a very tricky thing to secure. Also those who have experienced father issues tend to seek those who have the same problems which continues the generational cycle that is extremely difficult to break out of.