Sad isn't it.
I think the treatment of first-time parents by the parenting community is largely to blame. So many parents are so quick to tell you about the negatives of parenting, or at the very least to stress to a first-time parent that they have no idea of what being a parent's going to be like until it happens. That may be true but we don't have to bang on about it so much.
Personally, I said I will BF 'if I can' because I was too scared of receiving someone's scathing comments about how things may not work out that way and won't I just have to wait and see.
It's the same with birth - why shouldn't we say proudly 'I'm going to have a drug-free vaginal birth' without the pre-fix of 'all going well'...? I was told by so many parents that I was 'crazy' for wanting a drug-free birth and many were surprised at how I hadn't considered the possibility of a surgical birth. But why should I seriously consider something that's unlikely to happen to the point of half-expecting it to happen?