A lot of early adult stress starts with money confusion. Not because teens are lazy or careless, but because many of them have never been clearly shown how real-life money works. They may know how to swipe a card, but not how to think about bills, due dates, budgeting, or what happens when spending outruns reality.
That is why money is one of the smartest places for parents to start. The goal is not to make your teen an expert. The goal is to help them understand enough to avoid common avoidable mistakes.