@brasty
Tippz I am talking about how life could maybe be better organised. I don't think nuclear families, even though I am in one, is the best arrangement.
I think it's very sad that you feel that the only way a woman can be happy is to split from her man, and break up the family. And that a nuclear family is not necessarily best - even though your are IN one.
Very sad to read.
As I said, (and a few others have said,) I don't know one single mother who has a life like you describe. An American sitcom type scenario, with an ex she gets on famously with now, (who looks after the kids as much as her now, and who hands her bundles of money,) and who goes on the lash with her mates for the weekend, while her ex looks after the kids.
Nah, doesn't happen. Not with anyone I know. Ever.
All I can say (to the ones who say 'hey yeah you are describing me!' ) is you must have had a fucking awful husband/partner when you were together. No wonder you split! It's amazing too, how he suddenly became this wonderful, caring person/father, and decided to look after the kids a lot more now, and share the childcare 50/50.
Maybe ALL women with children should just leave their man?! 
One of the mum's at school said the other day that she envies single mum's and their freedom. I had to laugh.
PMSL. Hell would freeze over before I would envy any single mother. I would swap places with any single mother for all the tea in China.
I know in some relationships women do more than men, (practical stuff and childcare,) but anyone who thinks all single mothers have less responsibilities and 'ties' because their ex does 50% of everything, is deluded.
The OP is seeing the lives of single mothers through some very elaborate rose-tinted glasses!
And if you think brasty, that the life of a single mother is such a cool, breezy, carefree, fun-filled life, you are free to leave you husband are you not??? Why not? Then you too can have this great life! 