I think it is brilliant that women are going to have a choice and not to have to 'beg' for a CS if they want one. I am not convinced that this is going to cost the NHS a lot of money. My thought, when I saw the headline, was that just knowing that they had the choice might make some think about having a vb, human nature being what it is.
Some people have wonderful painfree births and pop out to Sainsbury's afterwards. Some have an agonising time and use what breathe they have to demand that their head is chopped off. (anecotal evidence) It seems to me to be largely luck, or size of pelvis, not evidence of superior moral backbone.
I have a cousin who is an obstretician, and she told me, after the birth of my first, that she was not going to give birth until it was normal to give birth on the NHS under a general anaethetic. She also told me that, in her London teaching hospital (St Thomas's? can't remember, she has moved on now), pain was more or less not allowed, and as soon as the whelpers screamed too much they were given a CS. (She now has 3 children herself, by CS)
It is true that most doctors and medical students only see the births that go wrong. My brother is a consultant (nothing to do with obs), and when he heard that I was pregnant he rang to tell me that it was either the biggest or the second biggest cause of death in women of childrearing age. I don't know how he got to his position with a bedside manner like that. Both cousin and brother had only seen the worst case scenarios.