I just read a post in which it was argued that a father should prioritise a child they are living with over children from a previous relationship.
And that financially he should prioritise his new family over that of his old. TBH I am incensed.
I am a stepmum and would be shocked if my DH didn't view all of his children equally. In fact it would make me question him as a father.
He definitely has a different relationship with his first son but I think does with all of his kids.
I think attitudes like this can aggrevate issues such as father's (or in some rare cases mother's) not contributing finacially and emotionally to their children.