@Skeumorph
You think it's rare that it is a positive thing?
I was a lone parent since my son was born with no involvement from his father. I have a job I love, we were fine financially and I owned a house - I was and still am self-sufficient, I did not need a man in that way. But I was lonely, had little support for my son, found weekends a struggle with just us two, had little adult company, was very difficult to have a social life. As soon as my son learnt what a "boyfriend" was he was asking me if I was going to get one.
I met someone great and we are now living together and are very happy. Its been nothing but positive for me and my son, and my partner and his children - who were also keen for him to find someone since their mum moved on.
The idea that I should have spent 18 years, from my twenties through my thirties, alone is mad to me. Why?! Why would I teach my son that I am only here purely for him? Why should I teach him that women are only there for their children, and those children's fathers only? I don't think children should think that if a marriage breaks down, you then have to be alone for years. That is a terrible thing to teach children. Women are not virgin/ mothers. We are whole, complicated, human beings with our own inner lives and needs.
My Grandma was a single mum, and didn't get involved with anyone until my dad had left home...but she also hid my dad's existence because of the shame. I thought we had progressed a bit since the sixties!