Re: How do other non-insane genetically engineered children live?
Why do you think there are "lots" of genetically-engineered "kids" out there? There's no evidence of them.
I can't recall the episode title, but there is an episode in season two of TNG when the Enterprise answers a distress call from a station that was doing experiments on children to improve immune systems. I think that qualifies as genetic engineering.
"Divine intervention is...unlikely" - The Doctor