I will tell you right now that having a degree will not guarantee you even get to try that one thing. Likewise, not having a degree does not free you to work on anything your heart desires. Earning a degree is one way to grow your strengths or fill in your weaknesses in a field. I can't see any situation where having a degree in any subject will make you worse off than not having a degree. It just has to be worth the time, effort, and money to the person in question.