As the Surgeon General discussed in her Call to Action to Support Breastfeeding, one of the biggest obstacles is a lack of support and misinfomation.
Friends can be well-meaning, but not all of them understand the intricacies of breast milk and breastfeeding, and can believe things to be true that aren't. In fact, many women who were led to believe they couldn't breastfeed likely could have with educated and helpful support.
And forget most pediatricians. Too often they don't know enough. In fact at the Call to Action a nursing student asked about lack of breastfeeding education in her curriculum -- she was told that she'd have to seek out specific breastfeeding education herself as there aren't standards to ensure anyone gets it in medical training.
But fortunately, there are people who are trained in breastfeeding, and they're often just a mouse click or phone call away, and the best part? Most of them are totally free.