I'm currently a student at George Brown. I started in January and was able to get into the culinary management 2 year program. It was fairly easy for me to get in. My opinion is that it is one of the more popular programs in that college but as long as you have your high school diploma you should be good to go. If you did not have high grades from high school, they will just make you write an assessment test to measure your academic skill in english and math. If you place poorly on those then they will just make you take the most basic english and math courses in the curriculum and you will have to take the more advanced levels later.
However, I believe getting into the 2nd year of culinary management is not so easy and there may be a waiting list. But that's a story for another time.
Good luck to you and I wish you well in your future culinary career.
Regarding the class demographic, you will be surprised just how wide a range of people will be in your program. There are students fresh out of high school, to arts degree students, to adults who have decided on a career change to retirees who just have an enormous passion for cooking.