Because as a mother, when a child cries for milk, she can't refuse. This is probably "only mothers are good in the world, and children with mothers are like treasures."
I think we should set up some special rooms or places in public places to feed Bao, because it is not easy to be a mother, and we can't blame her blindly, but we should provide some help to solve this phenomenon, such as installing curtains on bus seats.