Is our world ready for mind-controllable robotic body parts?

Recently, a team of researchers at University of Minnesota (UMN) built a robotic hand that can be controlled by the user's thoughts, via a brain chip. This may sound like a cool prop from some sci-fi flick, but, in reality, mind-controllable robotic limbs are becoming a life-changing technology for people with amputations, including injured soldiers. Most current generation robotic body parts are equipped with sensors that recognize tiny movements in the remaining shoulder, chest, leg, or hand muscles. If a user needs to move their prosthetic part, he or she has to first trigger some muscular or bodily movement. Learning and adjusting to such artificial body parts requires training, time, and patience -- moreover, a physically weak individual may find it difficult to use them.