Check out this article from Gamastura about some of the realities of the game industry and the knowledge that beginning game designers need - learn how to create ideas, lots of ideas and learn how to do
Schools/Colleges need to be honest with students - it's a tough biz. Lots of projects get started and then canceled. Need to have more ideas than you could use in a life time. When one gets shot down, you'll have another one ready to go.