Rabbi Yisroel Dovid Webster, Dayan, Yeshiva Emek Halacha. His answer is as follows: Many Rabbanim hold that it is not Tzniusdik for a woman to nurse in public. Of course, there are times when one cannot help it, but a mother has to consider that before she leaves her home. She has to do some planning before she takes the baby out. If she must nurse, it must be done in the most Tzniusdik fashion possible. If she is in a store why, she should try to go to the bathroom, or some other secluded place. If it is a store that caters just to women, then it might not be necessary to go into the bathroom. In a more public place, such as a restaurant, it would completely unacceptable to nurse in public. Some women may not care, but really, it is not Tzniusdik. I do not believe it is something our grandmothers ever did. Yes, there is attire available, however, that is because today we have no morals and everything goes. According to this reasoning if society would create attire for a married couple to have marital relations in public, would we than condone it and say that it should be permissible? I do not think so and feel it is the same in this case.
Menu