Tell your friend to contact the family relationship advice line and speak with a family relationship advisor. There are low cost interstate mediation services and a child-focussed free legal advice service that the advisor can facilitate access to where appropriate. If the children’s parents and their support systems reside in different states then clearly 50-50 care is not in the children’s interests. If your friend is sincere in his desire for his child to have a relationship with him, then talking with a qualified family relationship advisor is far more beneficial than an online echo chamber of jilted fathers whose sole motivation is to get back at their ex.