Don't get trapped by looking at what the price was that you paid for some stock originally.
I am all for trying to teach household finance in schools, starting as early as possible. And when it comes to high school, I think learning about compound interest is at least as important as trigonometry or memorizing the names of all 50 state capitals.
In the 1940s, economics started getting highly mathematical. It was basically because economists weren't smart enough to write down models of real behavior that they started writing down models of highly rational behavior - and they kind of forgot about humans.
There's a reason why start-ups, especially disruptive start-ups - like Google or Amazon or Uber - are full of young people. That's because young people are not as wedded to the old fashioned ways of doing things.
Many Americans say they want to be organ donors, but they just don't get around to acting on their intentions. Helping these potential good Samaritans overcome their inertia could prolong thousands of lives a year.
Academia does not provide many opportunities for immediate gratification. You work for two years on a project, it takes two more years to get it published, and then you start hoping someone might read it.