I got day work catering UM's various college graduation parties starting at 15. I made maybe $500 working 2 weeks around campus. But my dad sure as shit sat me down and taught me how to file a tax return.
Fast forward 10 years, and my wife's family outsourced theirs to some random "accountant" who only worked through her one uncle. I took them over, and reviewing her previous year returns I told her, she was lucky she didn't make enough money for them to care, but her dad needed to take his taxes elsewhere, and walked him through all of the issues I found.