Breastfeeding is not like peeing, I wouldn't feed my toddler or myself in the bathroom so why would I take my infant into one?
I see more boobage at the beach than from a nursing mother anywhere.
Your kids look curious? They ask a question? Just say she's feeding her baby, this is how I fed you for a while.
By making faces, comments or dragging your kids away, you're creating an uncomfortable situation where none should exist.
And if all of these arguments fail, it's a legal right so neener neener. Sorry that's childish but adult discussion doesn't seem to be understood by some.