>If software salaries are higher than EE salaries, EEs will move into software. Although occasionally I talk to people who seem to believe changing careers is impossible for some reason
Maybe because it is impossible in practice?
I'm an EE trying to move from embedded SW to higher level (backend/dev-ops since I had some experience with that and with python), and all I get are rejections ("sorry, thanks for your application but we can't move forward with it since we have so many quality applicants with more experience to choose from").
To me it seems, the current market doesn't seem to favor career switchers at all. Companies seem to be looking for seniors or at least mid level experienced in their area of work, so switching careers does indeed seem to be impossible right now. Or maybe I live in a bad market.