With literacy one can self-educate.
Schools are also charged with teaching people to think. I was a big rule follower just trying to stay out of trouble. Some individuals taught me that we don't always follow the rules. A couple of examples:
I lived on the "Space Coast" of Florida. My father was in the industry. Schools got federal money to offset the impact of so many aerospace workers' families moving to the area. To get the money, a form had to be filled out and signed by the parents, an "impact form." My senior year in high school, I was an emacipated teenager. My parents had moved to Kentucky. Incidently, they did this over the next several years, leaving a child behind in each state. We didn't move out, our parents did. Anyway, I filled out the form, left the parent's signature blank and turned it in. There was a quick deadline on these things. The next day I'm called into the vice-principal's office. He gives me the form and says to me, "I'm gonna turn around here and look at this wall, and when I turn back, I wanna see your parent's signiture on that form."
Close to the end of the season, the best swimmers on the team tried to get as much extra practice in as possible. The week before the last meet the coach comes to the #1 and #2 (me) swimmer on the team and gives us a key to the pool and says, with a wink and a nod, "I want you to 'break in' to the pool this weekend and get some extra practice in."
These people were teaching me that there is a difference between the way we do things and the way we say we do things. It was an important and valuable thing for me to know.
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"The cordial quality of pear or plum
Rises as gladly in the single tree
As in the whole orchards resonant with bees."
- Emerson