It's a good question. I think there's some aversion to the pumping apparatus being attached to human udders because it seems so foreign and, well, cyborgish. It

It's a good question. I think there's some aversion to the pumping apparatus being attached to human udders because it seems so foreign and, well, cyborgish. It's also uncomfortable at the beginning, and tedious at times. And pumping itself is a relatively new phenomenon. Not the ideal way to effect the goal, but a sometimes necessary practical compromise. I can think of plenty of reasons not to like it.