When I was stationed in Berlin in 1972-73, it seemed that Berliners were offended by pregnancy and nursing. My ex and I were on a bus one time about two months before my son was born. For no apparent reason, an old woman called my very pregnant wife "eine Hexe" (a witch). All we could guess is that the woman was offended by seeing a pregnant woman in public.
I do feel guilty about changing my son's diaper in a booth at a Wimpy's restaurant in Bremerhaven. When I got the diaper off, my son sprayed - right on the people in the next booth. The people didn't say anything, and I didn't realize until later that they had been hit.

As for nursing babies in public, I see it quite often - but I rarely see a breast in the process. Women here in liberal California may go topless at the beach, but they're quite discreet about covering up when they're nursing.

-Joe-