I have to weigh in with the supporters on this.
To return to AOG's original Question - "Why do some of the mothers of today find it necessary to feed their babies indiscreetly" - my answer is -
I have no idea, I have never ever seen it done, and would be surprised if anyone else has either - the exception being some dippy 'earth mother' type who insists on making a song-and-dance about it, which is indeed unacceptable.
I adore babies, and will always look at one when ever I get the chance.
If I saw this lady, it would take about half-a-second to see that she is feeding her baby, so I would not bother looking again until she had finished - it would be odd to do so.
So the idea that it is 'offensive' I find rather strange - if w woman feeding a baby offends you, don't look!
I am sure that most modern mothers are perfectly discreet - I recall sitting down to talk to an acquaintance who was holding her baby, and I realised after a few minutes that she was actually feeding, but that didn't interrupt our conversation - and why would it? No-one around us even noticed what she was doing, and why would they?
The notion of embarrassing a nursing mother by asking her to cover herself up with a napkin, as though what she is doing is not fit for human gaze is not only grindingly chauvinistic, it is seriously ill-mannered, and I would make a serious complaint if it happened to me.
With regard to the notion that women should feed their baby in a toilet, and the baby does not know where she is, that is true, but the mother does!
When my youngest was a baby, twenty-five years ago now, I lost count of the number of toilet floors I changed her on because there were no male changing rooms in those days.
When our local council installed one in the city public toilets, I was overjoyed, and went in to use it, only to find a council road sweeper's cart parked in it!
This is 2014 - babies drink breast milk - it's not the end of the world if you happen to see it.