Another symbol of status: Baby formula was invented in the West, and people have tended to see it as "advanced technology." They think that "formula must be better than mother's milk." This is another reason why the bottle is winning out over mother's milk. "In the past only wealthy families could afford formula.
奶粉是西方的發明，過去一般人惑於「現代科技」，有「奶粉比母奶好」的觀念，也是使奶瓶打敗母奶的原因之一。