well, I think people need to see and hear the 'other side' here.
I do support breast feeding in public BUT I also think women need to be sensitive to other people's feelings.
When my DCs were babies- 25 years ago- breastfeeding in public was frowned upon. What people have to remember is that there are some members of the public who still find breastfeeding in public embarrassing or just not something they wish to see. You might say that is their problem, but I do think we ought to be aware of how other people in their 70s and 80s may feel uncomfortable being in close proximity with naked breasts. And not all women are discreet. Some women where I live think nothing - it appears- of showing their breasts in the middle of caffe nero with no attempt at all to be discreet- in fact they sometimes look as if they are seeking attention. Other women use s shawl or a muslin nappy, and it's barely noticeable they are feeding.
It's being disingenuous to talk abut breast as if they are only used for feeding. They also have a sexual function and some older people do not want to see naked breasts.
It's courteous to consider those around you and also understand how other people may feel uncomfortable, especially when they belong to a generation when breast feeding in public didn't happen as much.