Comment by sandspar
Looking through Google's ad platform recently, I was struck by how searches like "how to become a game developer" have tens of thousands of searches per month and $50 CPC, whereas technical searches like "level design in Unity" have ~ a couple hundred searches per month. The basic shape of the market is hordes of people clamoring to "become" a game dev, shady schools selling introductory courses for tens of thousands of dollars, and very few people doing actual work.
I’ve noticed this is true of a lot of markets. I think of it like a triangle: a huge base of newbies, a smaller layer of intermediate folks, and a tiny tip of experts. If you’re trying to do an education-based business it’s a lot easier to try to sell to beginners.