I think a big part of the issue here is that the robotic boom hasn't happened yet. There just isn't that much demand for robotics skills, and the market is not efficient.

If robotics and machine learning can progress to the point where household robotics or general-purpose robots become a thing, there will suddenly be an explosion in demand. Salaries for robotics experts will go through the roof, and all of a sudden, everyone will want to study robotics in school. This could take another 10-20 years to happen though!