I largely agree with the essence of what you are saying, which is that there is no "inner child", although some people may be more capable of "reinventing the wheel" internally, which may allow for some new optimization for the overall structure.
“average
noun 1. a number expressing the central or typical value in a set of data, in particular the mode, median, or (most commonly) the mean, which is calculated by dividing the sum of the values in the set by their number.“
the result you get by adding two or more amounts together and dividing the total by the number of amounts
Saying "literally" in place of "figuratively" and then referencing the Oxford dictionary (meaning C, look no further) is a cool way to troll, and to make a fool of oneself.
You're wrong, and you can see this by looking at any number of published news articles where more often than not, average is used to mean median. You can see this from the way that we use average to mean typical. 'Typical' features are more likely to be median or mode than arithmetic mean.
'Average' is itself a colloquialism, so the colloquial use is what's important.
¹ This makes "average" a particularly weird "false friend" vocable, because the average recipient might well take it to mean what you think it means, but might also understand it as a very closely related, but subtly different thing.
Nitpick but it's "median" not "average".
> everybody has an "inner child", but most functioning adults have built layers
And that's the point where I'm scratching my head. What do people even mean by that? As I observe the "inner child" in others and then apply the new theory to myself it's freaking obvious that the adult part is doing all the reading, all the predicting, all the planning, all the outwitting of the child, all the building, all the self-updating, all the $dayjob. Who is writing this text? I am - the adult part. I am who has 99% of control of the communication at this moment. (At a different time the show can be 50% mine. Or 1%. But when writing, the inner child is mostly shunned, I think he cannot even write too well at all.)
And so I protest calling me "an outer shell" that you think you can just simply "re-learn". I am no shell. And I'm definitely not outside! I am the first class citizen, I just happen to have a very silent/weird/energetic/stupid/shy roommate. If I try less, he will have more control. If I try harder, he will have less. Balance. But the balance that is maintained solely by me, i.e. by the adult part - the inner child is not able to do that!