I had a very different experience of NCT to the usual "natural birth and friends for life" stories told on threads about NCT classes.
I learnt a lot, the antenatal stuff was really helpful. We did talk about pain relief in a practical (rather than negative) way. We did a c section simulation - it was really useful to know why there were so many people in the room a few weeks later when I had an emcs.
Our group were great for socialising for the first 6-9 months or of our babies lives, but I felt quite arm's reach from them once everyone started going back to work. Of 8 couples, 4 lived in the sane village and saw each other a lot more often, a lot more easily than the rest - of the rest, other than me, they already knew, albeit indirectly, one of the central core of couples in the sane village. Once the babies were a bit older, and not the only thing we had to think about, it transpired that actually, they were all some of us had it common. I drifted away from the group due to geography and the fact that they were all significantly better off than us - weekends away that cost our monthly mortgage payments, holidays to Italy, ordinary lunches at places we'd consider a treat. Private swimming lessons in their parents' pool.
The person I actually have stayed friends with is the trainee leader who shadowed our classes.
I found my tribe in village hall mum&tot groups, local pool swimming classes and Surestart.
So - pain relief and c section education ✅
Long term friends - not really ❌