My DD is breast feeding her 7 week old, we have been out and about and she feeds where ever he needed to, cafe, shops, drs surgery, even assembly at school, where no one was any the wiser to what was happening.
He is fed before we leave the house jingle but if we waited until he was satisfied my DD would be house bound, the baby had a tongue tie which has now been snipped but he is still under the impression he needs to feed for long periods and often to be able to latch on sufficiently to be able to have a full feed. He dictates the fed times.
I would be surprised if anyone was aware she was feeding, she uses layers of clothing so nothing is visible, all very discrete.
I think there is anything more natural than a mother breast feeding, and I dont think a mother should feel she has to visit a loo to feed in private, we wouldn't want to eat in a loo so why should a baby.