Caesarian's costs the NHS around £1,700 a time compared with £750, for a normal childbirth and women also stay in hospital for twice as long on average. There is a general presumption in the UK that avoiding what is an invasive operation is preferable for both baby and mother alike, in the absence of other factors.
I would argue that clearly How a baby is delivered is other people's business since other people are involved. However the ultimate choice should be the mother's.