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> until about 20-21 .. fear and common sense .. isn't fully developed

Total nonsense. It's just used to retrocon why teenagers are given less and less responsibility.

For virtually all of recorded history by 20-21 you were an adult with approximately 3 kids. If people had no common sense by that age they would be dead.

The brain responds to input - if you are given no responsibility, then your brain never learns responsibility. People keep "chasing" the magical age when you are responsible, when actually you have to learn it. And you have to learn it by doing it.

You can't wait until after you have it - it doesn't work that way.

Car insurance goes down after 22 because by then most people have had 6-8 years of driving experience. If you started drivers earlier, then insurance rates would go down earlier as well.



> > until about 20-21 .. fear and common sense .. isn't fully developed

> For virtually all of recorded history by 20-21 you were an adult. If people had no common sense by that age they would be dead.

There is a pretty gigantic difference between "isn't fully developed" and "doesn't exist at all". Try not completely rewriting the position you are responding to just so you have something laughably easy to rebut.

This is particularly silly in a medium where the original you are responding to is readily available, and even more silly when you quote the bit you are radically rewriting in your own response.


The problem with that is that "fully developed" is a meaningless phrase.

There is no fully developed - as I wrote in my earlier comment, it keeps developing for a persons entire life. There is no point where it stops.

Another problem is that this type of development is more influenced by environment than it is by age. So using age as a cutoff because of "developed" is silly - that's not the thing that matters the most.


> The problem with that is that "fully developed" is a meaningless phrase.

Even if that were true, that would justify pointing that out and/or seeking clarification, not simply making up your own strawman to argue against because the person you wanted to argue against hadn't posted something for which you had a canned argument handy.

Its also not really true; while "fully developed" may be somewhat imprecise, its a fairly decent non-technical characterization given the research showing the course of physical development of the relevant brain centers and how they track with age.




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