As far as I can see, it's like this.
You do your A levels aged 18, work very hard and get good grades. You go on to university. You incur a lot of debt in order to do so, as well as working throughout your studies. You then (if you're lucky) get a graduate level job when you've left and spend the next ten years paying it off. When you're in your early 30s you have a baby but have to go back to work to pay the mortgage.
Or, at the age of 18, you have a child. You spend three/four years with the child at home and then decide to concentrate on your career once DC is at school. The government provide you with bursaries, funding and childcare fees allowing you to do so. If you're one of the lucky ones, you get a graduate level job when you've finished.
seems a no-brainer 
Or there's the person who works for a while, has a baby then decides to retrain, often but not always as either a teacher or a midwife because having their own child gives them an automatic advantage.
I'm sure I'll be told to fuck off and I don't care to be honest but at least tell me why, because as far as I can see that 18 year old who worked hard and did well in her A levels was a fool.
And yes, it was me.