Since I started the original (other) thread that kicked off this discussion too, I'm going to give my views here.
Leaving all my personal issues aside, I feel very strongly that the pressure, the lack of choice and the 'moralising' around the issue of childbirth is unlike anything else in the medical arena. Recently, a member of my close family was treated for cancer and he had to decide on what type of treatment he wanted - the choices being surgery or radiotherapy. Both of these options had advantages and disadvantages (and the surgery was much more expensive for the NHS). However, he was given all the information in detail by his oncologist, and then left to make his own choice. In my opinion, childbirth should be no different. It is perfectly possible to inform women about the pros and cons of CS and VB, and then allow them to make their own decisions in conjunction with their midwife and consultant.
But this is very very far from being the actual situation at the moment. And I have to agree with the earlier poster who said that this is really about cost rather than about the mother's welfare. Why else is an element of choice removed for childbirth which is present for nearly all other medical decisions and procedures?
I have to say that I also think that this is a bit of a feminist issue that women should unite behind, rather than squabbling about whether VB or CS is the best option. Women who have a 'genuine medical or psychological need' for a caesarean are considered just about acceptable but why, for example, is it considered unacceptable to say you want to have a caesarean because you're worried about the loss of sexual feeling? Here's a question for you: if men had to go through an ordeal that risked ruining their sex lives, how many of them do we think would actually do this? Does anyone believe we wouldn't have caesareans on demand on the NHS?
It should be all about informed choice - and by that I mean real informed choice, not 'we're going to tell you how horrendous a caesarean can be so you feel pressured to try natural childbirth'.