Totally with the grass is greener thing. My own sister states that she wishes she'd never had kids, much to our mum's disgust. She dotes on her kids, but I think acknowledges that the past 25 years of her life has been lived in pretty much penury as a result of her being a parent, that is why I think she feels that way and would imagine that is true for many parents. My sister's ex (who left 21 years ago and since then has paid exactly £0 child support), his mum put his sister in a children's home and told him how much his arrival ruined her life, no wonder he was fucked up, that is extreme as hell, but have heard similar tales from others over the years too, hideous, really.