Because they don't know how because we focused on this "one man's trash" stuff.
How about if it's your treasure you go study it at a university or even on your own instead of cutting education for stuff that will be beneficial for literally every human being on Earth?
How do you know it's your treasure if it's never been introduced to you, though? How do you choose to study it at university or on your own if you don't even know about it?
Also, how is investments beneficial for literally every humab being on Earth? Investments is a capitalistic venture, based on capitalism's principals. In order for someone to make money in capitalism, someone else has to lose money. I eat at a restaurant... the waiter, the cook, the owner, they have to receive money to pay them... But in order to pay them, I have to give them my money, which means I lose money. And then they go and lose money by paying for the supplies. Capitalism requires winning and losing. If we teach everyone to be a winner in investing, then we have no losers. And because capitalism is all about give and take, if we have no losers, those "winners" aren't really winning anything.
This isn't true at all. Capitalism is not a zero sum game. There is far more wealth in this world than there was 100 years ago. If what you are saying is true, then wealth creation would not happen, the total amount of wealth would be stagnant and it would just be changing hands. You are missing the critical fact that trade (like the decision to exchange money for food at a restaurant) can make everybody involved better off. ---
I may not go down in history, but I will go down on your sister.