" The main reason, I believe, is that software is simply cheaper than hardware(robots) so highly skilled positions which require software not hardware to remove will be the first to go."

Very much this. This is how we'll be able to replace general practitioners with, at first, nurses with a bit of extra schooling - and then nurses with a 4 year degree... and then with a 2 year degree. Yet we'll still see surgeons for some time because it takes robotics or some other scientific breakthrough to replace them.