What does it take to become a professional theatrical makeup artist?

If I am doing a shoot for a client I can choose to pull someone off the street who looks right for the job and normally not pay much money or I can hire a skilled professional model and pay a lot more money. The reason I would op for paying more for a professional model is that a shoot will go quicker and have a better chance for success with a pro then someone off the street. So a professional model can actually save a client money by shortening a shoot and the quality of the images will be better (better usually meaning more sales). So what does a professional model bring to a shoot that some one off the street does not, professional attitude and the ';model's tool kit.'; The ';model's tool kit'; is the ability to express and pose and knowledge of make-up, hairstyling and wardrobe. This package of skill is what makes a model worth their fees.What does it take to become a professional theatrical makeup artist?
Go to school for makeup artistry or esthetics... I'm right now study in one - it's a lot of fun with different types of makeup. You have to know a lot to become rally professional.