So, that thread asking about being in a gap year in vs. being in school really got me thinking- have you ever thought about how a school is less than half of our life? After age 5 ( not counting those baby years at home). If we count most " standard" jobs without a terminal degree.
Assuming someone does UGrad and a two years master's and starts working at 24. That's 18 years of school with K-12 plus 6 years of secondary education. Assuming you retire at 65 ( which I know is less and less of a thing these days and people often work until they are like, 70), that's 41 years of working- about 40 percent of your life is spent in school relative to how long you spend working.
And for people who do have terminal degrees ( medical doctors, profs), they often retire later, so the effect is the same. And then the time you spend as a " retired" adult makes it so really just a fraction of your life is in school.
This might seem obvious, but I never really thought about it that way- now I see why adults say " life hasn't really started" when you're a teen or early 20-something. I guess I had so much school ahead of me that I couldn't really think of it that way.