He probably didn't raise her because he was young, scared, reckless, and immature.  But now, the story changes...he credits his daughter for reconciliation, forgiveness, and acceptance.  This story is about a dad's second chance..does he deserve this good relationship with his daughter?  Maybe he does, maybe not, but the point is, this is a new season for both of them.  He is fully committed to her as he realizes her grace upon him .