Answer:
"Learning the right ways to manage money is important"
Step-by-step explanation:
The main idea of the passage is to highlight how valuable it is to learn how to manage, spend and arrange money.
The other quotes are more of guidelines for how to manage money, the tips are given to teenagers what should they do or not do to be better with money management.
That is how we know that "Learning the right ways to manage money is important" is the main idea - all other options are talking about that one thing, giving the advice and underscoring the idea of how important it actually is.