That is a great story!
It reminds me of a baby that was in Texas Children's Hospital when I was there in 1976. He had several heart defects and was pretty sickly. He had parents, but they were apparently quite poor, monetarily and as parents. They would drop him off at the hospital when they were unable to care for him, when he got sick, or when they were going out of town. The nurses would take care of him in the abandoned children's ward. Because I was an older pediatric patient (almost 15) and bed bound, they would bring him to my room and leave him for short periods of time. I would play with him. I don't know if this would be acceptable in today's world, but both he and I enjoyed it.
This baby was 18 months old, but could only sit up and scoot. When he was at the hospital, he would have physical therapy and the nurses would work with him to help his physical development, but when he was with his parents, they apparently left him in bed or a carrier for long periods of time, so he would lose much of what he learned.
I often wonder if he made it and where he is now. I wish he had been adopted by a family like the Monroes.
