Thinking strategically from a career and life perspective.
Managing your investments
Eating right and exercise
Risk Taking - take big risks early in your life, ones which have the biggest upside.
The terror of the unknown and leaping into it and coming out at the other end multiple times makes you fearless.
The journey is all that matters, the destination is not in your hand. But the journey teaches a lot.
Some of the above, I was fortunate to learn early on from good mentors, and I've reaped big rewards, the rest I only wish someone had told me earlier.
Just the concept of sticking £100/£1000 here and there into a an index tracker and leaving it well alone - ideally until a rainy day/emergency.
There have been plenty of times in my life I was 'cash rich' but I left my money in the bank, as I didn't know what to do with it. I used to then over pay my mortgage, which was crazy as I had a 1% interest rate and the stock market would have been a better place to put my cash.
Don't get me wrong, I'm not a 'rich' man - but I've always put money aside (out of a fear/memory of being broke) I just could have worked that cash harder - and that was money that I could have taken some risk with.
I mean really understanding the subject of investing. A good book teaching this is "The Intelligent Investor" by Benjamin Graham ( Buffett based a lot of his philosophy on Graham's "value investing").
There is a lot of learning, that happens in school which has no bearing in later life. Why not have a course which combines economics+investing+accounting?
Managing your investments
Eating right and exercise
Risk Taking - take big risks early in your life, ones which have the biggest upside. The terror of the unknown and leaping into it and coming out at the other end multiple times makes you fearless. The journey is all that matters, the destination is not in your hand. But the journey teaches a lot.
Some of the above, I was fortunate to learn early on from good mentors, and I've reaped big rewards, the rest I only wish someone had told me earlier.