A lot of people in this discussion are trying to use the product of the putatively broken system (themselves or others they know) to prove that the putatively broken system must be left in place. This is simply begging the question (in the original sense), not an argument.
Edit: Fine, I'll spell it out. You can't counter an argument that says we have a system that is generating excessively dysfunctional 15-year-olds by pointing out that the 15-year olds generated by the system are excessively dysfunctional, and then follow it up with the conclusion that therefore we need the current system. That doesn't disprove the point, because the point in the first place is that the system is broken. You can cite millions of examples of actions taken by publicly-schooled 15-year-olds that were stupid, but none of them actually provide any useful information about the argument.
My post here isn't an argument either way about the issue; it's just simple logic. Arguing that of course 15-year olds are stupid and need to be in school is begging the question, or circular logic, and an invalid argument. It doesn't prove anything either way, it's not even evidence either way. Modding it down doesn't change that.
This isn't all spelled out in the exact post I'm replying to, but this bad logic is shot through this entire comment thread.
Where did I argue that! Your putting words in my mouth. All I am saying is that, speaking from where I am now, at 15 I wasnt equipped to face the world. School was a good place for me.
This stuff has sod all to do with the schools; it's simple logic about maturity. Have you bothered to read the studies posted elsewhere about brain development??
The education system is broken: but that doesnt means it's a bad idea. If we dont impart our knowledge then you end up with a problem. It could, ofc, be taught better than it is now.
You don't "say" it. The idea that school is the only way a childhood can be is so deeply ingrained in your argument you can't even perceive it. It's such a given that you consider it a logical axiom, and you end up arguing circularly without even realizing it, you and about half the other posters in this discussion.
Your last sentence would seem to me to reinforce the point. Maybe school can be "improved", but the idea that it is potentially fundamentally flawed doesn't seem to be thinkable. Mind you, I'm not saying that you (and others) think the idea, then reject it (which if done properly would be perfectly valid); people don't seem to be even capable of thinking the idea.
Your picture of maturity is shaped by the system under question.
Again, I'm not actually attacking or defending the schools here. It's the logic I'm talking about. You can't justify the current system by using the current system; it's circular.
My impression is that kids that are that mature at 15 find non-school ways to improve their lives/skills/education. The rest need the extra time (and of course for some, no amount of time is enough).