Very true, as a mid wife told my Gran when my mum was born "the cows in the field make better mothers"
My Great Aunt, who i never met, buggered off in the 1940s, leaving her husband and my Grandparents to bring the children up.
A close relative raised his DD on his own after his partner died, but someone else i know, in a similar situation, handed the child to the grandparents and went shagging, women threw themselves at him in sympathy, plenty of married ones too, has a new family, has little to do with his original child now.
I just think that our society raises expectation on to women and yet has very low expectations of men, the adversarial nature of divorce doesn't help either: another friend of mine had to fight tooth and nail to get joint access to his son, the courts just took the mothers word as God and his as false.
Having said all of that, my Dad fucked off abroad when i was 6, (thank God) never seen or heard from him since and jolly glad of that too, he was a cunt & i hope he died a very painful death.