I overheard a mother on the bus the other day, talking to her young child about money. The child asked where money comes from, to which her mother replied "You have to go and do something you don't really enjoy and people give you money for doing it."
No, children, no, no, no. Please, find something you really love and get good at it. It doesn't really matter what it is. By the time you're a grown-up, you'll probably find people queuing up to pay you to do it for them.