This is basically stopping natural selection or at least being slowed down just because people think it’s cute when a 40 year old has an is lower than that of a 6 year old and costs thousands in medical bills. It is humanly, financially, and morally wrong. (3)
Also the children and adults with disabilities cost significantly more money to keep alive. People with disabilities being kept alive is not humane. They are suffering without knowing it. This is one of the reasons humanity is evolving slower with them. (2)