Encourage your friend to keep her daughters father involved as much as possible. Not having my father around for 10 years effected me greatly, I didn’t realise it till I started dating my partner.. I depended on him a lot to make me happy and love me that way I wanted.
Had to take a step back to realise what I was doing and took time for me to understand why I was like that.

You are a great friend, continue doing what you are doing!

Not me personally but my hubby. He grew up without a mother. She was a drug addict and left when he was a baby. He is such a wonderful man but I would be lying if I said it hasn't affected him. Especially now since we have children he doesn't understand how his mum couldn't love her children. It hasn't affected him too much but I know it gets to him sometimes.

I can’t really give you any advice but I can tell you what my experience was like. My parents split up when I was 6. He was a violent alcoholic and it was the best decision for us all. I last saw him 30 years ago, he passed away 9 years ago. I can’t say I missed out on anything by not having him around. My mum was a really good mother and made sure I was well taken care of. I also had my grandparents near by so my grandfather stepped in as a male role model. It didn’t bother me that he wasn’t around, I remember what it was like living with him,

Having your dad is so important. I needed mine but he died. I made shit decisions. I needed protecting. I needed my dad to help me grow. I still suffer to this day.