Spudulika, I am not saying that in Canada you are not allowed to labour at home and that mounties will come and whisk you off to hospital for a mandatory epidural! Of course women can labour at home, but they will not get turned away from hospital if they get there dilated less than 3 cm, as they routinely are here.
However, there are plenty of women who by the time they are 2 cm dilated are in massive pain, and just hours to delivery, and yes they will get pain relief in Canada whereas they would not on the NHS. And once they express a wish for an epidural, they won't be fobbed off with gas and air (doesn't exist there) or pethidine (much less used than here).
The fact that epidural rates are more than twice as high as here, yet CSs, forceps and ventouse rates are lower, flies in the face of the argument most commonly made against epi here, ie that they lead to increased intervention. I have ventured one possible explanation, which you disagree with although you also have no data that proves me wrong. How then do you explain it?
Why is it so difficult to accept that the way things are done in another country just might be better, in some ways, than the system we have here, since they achieve less intervention and pain is more effectively managed?