What is the "PC" attitude to breast feeding these days?
I personally think a mother should be free to do it anywhere. But I also think it's not too much to ask that some kind of shawl is used or a nursing top which is discreet.
I was having a conversation with a mother recently and she picked up the child and proceeded to breast feed and I didn't see anything due to the top she had on. I thought those types of tops are very clever and avoid awkwardness for all.