I think it could be a combination of:

Conflicting advice - I personally didnt experience this as I havent needed to seek advice on BF, but after listening to what some of the mums at mothers group say, they seem to be having this problem where everyone gives differnt advice and it just gets overwhelming and confusing. Also some nurses and midwives seem to have different opinions and ideas.

Going back to work with lack of bf support - this I believe will be a barrier for me if I want to breastfeed long term. There's nowhere appropriately private at my workplace to express (unless I want to do it in the loos or at my desk - i dont think so) and I feel a bit funny about storing my EBM in the fridge there as I just *know* my colleagues will think its wierd and I'll cop flak for it - lack of education to them, I suppose. My workplace is not the type of place that will be willing to accommodate for this sort of thing either (hell, I had enough trouble getting maternity leave!) Lots of women need to go back to work earlier than they had hoped which would be one of those things making it tricky for mums to continue bf if theres nowhere to express at work/lack of support from their workplace.