We need to teach our children to be comfortable with our bodies and understand that breasts are for feeding babies. If you teach your children about the natural way of feeding a baby like its no big deal and do not teach shame for the human body, then you do not have a big problem.
Its easy to say, "Well Johnny, some babies get milk from a mother's breast. That's where a mommies milk normally comes from, just like when you see baby animals nurse from their mothers. That's what they are made for- making milk for the baby." It becomes a teachable moment. ;)
We need to stop teaching our children to be ashamed of their bodies. You can teach privacy and modesty w/o taking it so far that it becomes fear of the human body. Besides, when you make a big deal out of something by acting so uncomfortable around it like it must be Taboo, you create a mystery about it that makes children more curious. Might as well be open and honest with them in a developmentally appropriate way once and for all like its no big deal and move on from there. ;)
Feeding a baby is a very natural and human thing to do. It should never be looked upon as shameful. If it makes you uncomfortable, I would suggest you tell yourself that this is not a sexual action and therefore does not fall under the idea of immodesty. Look at all the other cultures of the world that also accept this as normal. Their morality is not affected by it. Because this has nothing to do with being immoral. We have to separate ourselves from this "very old school" way of thinking. Our beliefs have not been threatened by someone feeding their child. Let's be realistic here. We need to reach deep down an examine ourselves and come to grips with the guilt-ridden old-style beliefs of modesty and understand that if its sexual in nature then by all means- modesty applies! But not to something as maternal as breastfeeding. Breastfeeding is NOT sexual and if you can agree with this statement, then it logically follows that you should not allow yourself to be bothered by someone who is breastfeeding! If you are, then you need to examine the root of what is truly bothering you, which is not breastfeeding, but shame of the human body.
It SHOULD never be a problem to nurse in public and you should NEVER have to go into a bathroom to nurse! You wouldn't eat there, why should you're baby? ;)
Also, as far as it turning someone on? You are feeding a baby, that should not be seen as sexual and if it is in our over-sexed society, then it is definitely the other person that has the deviance problem and needs professional help. For those that just think its improper, I say to you, just don't look. You have the right to turn your head and I have the right to feed my baby.
Not all baby's like being covered. Mine didn't. They wouldn't eat like that and I refused to starve them. Now I didn't let it all hang out completely, but it shouldn't be a big deal. You can wear nursing bras and combo tanks with your shirts that let very little show so that onlookers have to be really ogling to see something more than what you would see in a bathing suit. Its absurd to make women feel shamed for feeding their babies. And also, you need to be able to manipulate the breast sometimes as well as the baby if you have a difficult nursing situation. Its so unfair to think that everyone is built the same and that it must be super easy to do it in a very hidden way for everyone. Let every woman do it the way that she deems is best for her and her baby. The rest of us should ignore her and not be bothered by it. Its natural and its survival. And the rest of the world is still doing it.
Its been done this way for hundreds of thousands of years and should never be seen as improper. That has to do with the over-modesty of the church in confusing what is sexual and what is maternal. They are two different things. ;) Just my 5 cents worth!