Ton of men raise children who aren’t theirs biologically and they don’t love them any less. People love adopted children just the same. My grandfather raised my mom as his but she wasn’t biologically his. But he was the only father

The issue is if you raise this child as yours but biological father comes back in to the picture and demands his rights. Does this man want to be a father to this child? Sadly you might not be a father if he wants to take that role