As mentioned in an earlier post I'm one of the 9% so I am aware of the life changing nature of these injuries, but I also think it's important to recognise that my experience is not typical. As Quitelikely and MabelSideSwipe said earlier, any information given to pregnant women about the risks of epidurals and instrumental delivery would have to be given very carefully as fear can also slow down labour.
I also agree with ThisBitchisResting about the myth of choice. Without outing myself too much, as well as injuries from having DC1 I also have a life long injury caused by forceps used at my own birth(big heads run in the family). Before I had DC1 I was therefore well aware of the risks of instrumental delivery, and wrote on my birth plan that forceps were to be used only after discussion of the risks and benefits of other options (all the stuff they tell you on the NCT course basically). But when it came to it, my baby was stuck half way down the birth canal with the cord round his neck and a heart rate that was getting slower and slower. I was absolutely terrified and just wanted him out.
Now, there were certainly elements of my labour that could have been managed better (the point at which his heart rate was lost and the monitor was clipped to his head should have been the time to discuss options for delivery), and I don't disagree that everything possible should be done to reduce birth injuries to the lowest level possible, including informing women about all their options and the risks associated with them. Perhaps hospitals should have to publish the number of 2nd degree tears and above in the same way that they have to record CSections, maybe that would encourage better management of labours. But ultimately I go back to my earlier point that childbirth is an inherently risky business. You can do all the hypnobirthing you want and something still might go wrong; as rallytog1 has shown, you can get birth injuries from a C section; there's no way that's completely risk free. I hate it that for whatever reason, these threads always turn up so many women who in some way blame themselves for asking for an epidural/not reading up enough/not challenging the professionals, when really they did their best in what is often a very frightening experience.