Earlier quoted context omitted.
This back and forth sounds a great deal like "NO U" being shouted on 4chan. Are there any sources, papers or studies indicating whether it is learned, innate or both? Sources and empiricism are what we should be resorting to, not down-votes.
You're not going to find a lot of people jumping through that hoop, given that 5 seconds with Google is all that it takes. This isn't some controversial developmental theory, and this isn't a formal debate.
I want to know why the people going back and forth think one way or the other. If I rely on my own research I might not get the nuance that a psychologist or other person with a vested interest would be able to share.
There seems a great deal smoke but no light in this discussion. This is uncommon here on hacker news, normally sources are appreciated and I frequently see them brought in well before an argument begins, even on extremely casual topics. They often earn an few upvotes too.