Ushy - you don't know what percentage of those who didn't get completely satisfactory pain relief requested an epidural and didn't get one. The survey doesn't make that clear. You have to remember that 1 in 10 women who have an epidural don't get adequate pain relief from it. About half of women who opt for pethidine don't find it reduces pain significantly.
And no - it's not acceptable that there isn't enough anaesthetist cover to ensure all women who request an epidural get one. But in my view it's more unacceptable that there aren't enough midwives in the UK to ensure one to one care in labour, as lack of one to one care is putting women and babies in danger in this country.
So personally - in an NHS where women are dying from lack of basic midwifery cover on labour wards, and old people are becoming malnourished from poor nursing care, I think there are other priorities which are more pressing than increasing access to epidurals, particularly as in the UK they're not associated with better clinical outcomes for mothers or for babies.
Actually there is one answer to the problem - encouraging healthy women to stay the fuck away from obstetric units UNLESS they know they want an epidural.
Women who go to obstetric units are much more likely to request an epidural in labour, no matter what their feelings about this type of pain relief are before the birth. Just being in a CLU appears to make labour longer and more likely to go shit-shaped, thereby increasing the need for epidurals.
But that would mean spending more money opening midwife led units, more birth pools, more homebirth. Which of course would take money out of maternity services in general. Money which many of this thread would like to be spent NOW on having more anaesthetists on labour wards.