I had kind of a midlife crisis at twenty which probably doesn’t augur well for my longevity - David Foster Wallace

"Learning how to think" really means learning how to exercise some control over how and what you think.
It means being conscious and aware enough to choose what you pay attention to and to choose how you construct meaning from experience.
Because if you cannot or will not exercise this kind of choice in adult life, you will be totally hosed.

"It's not that students don't "get" Kafka's humor but that we've taught them to see humor as something you get — the same way we've taught them that a self is something you just have. No wonder they cannot appreciate the really central Kafka joke — that the horrific struggle to establish a human self results in a self whose humanity is inseparable from that horrific struggle. That our endless and impossible journey toward home is in fact our home. It's hard to put into words up at the blackboard, believe me. You can tell them that maybe it's good they don't "get" Kafka. You can ask them to imagine his art as a kind of door. To envision us readers coming up and pounding on this door, pounding and pounding, not just wanting admission but needing it, we don't know what it is but we can feel it, this total desperation to enter, pounding and pushing and kicking, etc. That, finally, the door opens...and it opens outward: we've been inside what we wanted all along. Das ist komisch."

In some respects all this variety is probably good, productive of difference and dialogue and so on. But it can also be confusing and stressful for the average citizen. Short of signing on to a particular mass ideology and patronizing only those partisan news sources that ratify what you want to believe, it is increasingly hard to determine which sources to pay attention to and how exactly to distinguish real information from spin.