You kept ignoring the more important point and cherry-pick a bikeshedding topic (the definition of some word) to reply.
> Only activists have opinions...
That's not what I said, but you certainly did say that adult means that you HAVE TO think about those things, in some particular way that is taught in an university.
Adult to me just means you can take care of people other than yourself. Of course it's a subjective definition, but a teenager can read books/go to university and have sophisticated thoughts about the world, that doesn't make them mature.
Here is something to consider though: why is it that you only study critical thinking, scientific method or whatever at the age 18? Why do kids have to fuck around for years, apparently unable to think, before "university"? Why should they? What are they before that? mindless primates?
> you certainly did say that adult means that you HAVE TO think about those things, in some particular way that is taught in an university.
I didn't say that (provide a link?), though I do happen to think that adults do have to be responsible for others, as you say, and the bigger issues are big because they impact those responsibilities. The rest is your own ideas.
At college, you learn that there is no one right way to think, and also the very narrow limits of your own mind.
> a teenager can read books/go to university and have sophisticated thoughts about the world, that doesn't make them mature.
Right, college is about knowledge and thinking skills, not so much maturity (but it helps there too). For maturity, get married and work in a coal mine at 13 years old.
> why is it that you only study critical thinking, scientific method or whatever at the age 18? Why do kids have to fuck around for years
Hmmm ... I had science classes, and was taught to think critically, before college, but not nearly on the same level. Why do people not learn more complex things earlier? Why not teach graduate level physics to 6 year olds?
> At college, you learn that there is no one right way to think
Again with this "at college" rhetoric. I guess if you don't go to college, you will be a bigot, on top of having no critical thinking and being an absolutely selfish individual
> For maturity, get married and work in a coal mine at 13 years old