Here are several ways:
•u have 2 pay taxes and bills when u become a big grown up lad and if u no understand economics this part of your inevitable future will likely be more difficult
•economics teaches u that saving moneys is good, so u should save up big moneys so u can move 2 beach for retirement
•economics teaches u the concept of human necessities-- u need to manage ur money so u can buy important stuff like f00d
•being homeless is sad and knowing economics will help u become a non-homeless adult
•economics teaches u that u should not waste ur money on Gucci