Do You Have To Go To College To Be A Model?
Certainly not, but some form of education or skill will definitely help
Going to modeling school can give you advantages over those who didn't, you will learn valuable skills like makeup, hair, fashion etc. and this knowledge and training will really help you in your search for work.
Schooling gives you a boost in confidence.
Schooling looks really good on a resume/portfolio.
Schooling with a Well known agency may be able to help you get into doors that others, who with out the training and recognition of the agency cannot.
But it all boils down to what you think will help your career the most.