I was interested in what the educational process was for shirtmakers or suit makers, and how long would it take. I've picked up that it mainly involves apprenticeship, but are there any classrooms or universities where one would also learn the theory as well. I'm assuming that the number of years of training would depend on what you chose to specialize in. And, is there some type of exam which one must pass to 'graduate'? And, is there an age where it is too late to begin such a career?