On the broadest level this is pernicious nonsense. My vocabulary is failing me this morning. What's the word for when something (humans) is like a version of

On the broadest level this is pernicious nonsense. My vocabulary is failing me this morning. What's the word for when something (humans) is like a version of something else (other primates) that hasn't fully grown up? We are like chimpanzee babies that do not mature into chimps, instead we mature into these weird big-headed talking hive apes. Um, the point is that remaining young is a large part of how humans became human. What we need to do is create a more Sesame Street-style sane and healthy environment. What we call "adulthood" is the stress and trauma of dealing with physical constraints from which we protect children. Now that those physical constraints are largely gone (thanks to science and technology) the remaining constraints are mostly leftover logistical glitches. Ergo, life should get easier, the responsibilities less onerous, and people should remain young at heart.