In my trade school, it is mostly hands on work with tests and quizzes that relate to fixing cars. There is no work that you didn't sign up for, and the schoolwork is very interesting (assuming that that trade as a whole is interesting to you). Like @appesh1 stated, do what you want to do. It is your life to live, not mine, not some random person on reddit, its yours. I hope I have been helpful with at least providing some insight/broadening your options.