Software is eating the world, sure, but consider a parallel: the typist. In 2000 there were 282,000 employed typists in the US[1]. Today it has fallen to 23,000. A 90% decline over 20 years. Why? Everyone knows how to type now. Typing is an assumed skill in other jobs. Twenty two years ago I took a typing class in middle school on clacky old Selectrics[2]. While typing classes aren't taught in school today, I cannot help but look at the pervasive 'teach kids to code'[3][4][5][6] wage and think of the similarities.
Future jobs will expect coding as a skill, not an end to itself. You can even see the inklings today with the explosion of data science, analysis, and digital marketing. In two decades, with an assumed coding skill, we'll have orders of magnitude more. Just as we can ask today, "What happened to all the typists?" we'll be able to ask, "What happened to all the coders?"
1. https://fred.stlouisfed.org/series/LEU0254503100A
2. http://ibmselectric.blogspot.com/2016/03/topaz-bronze-select...
3. https://teachyourkidscode.com/
4. https://www.monster.com/career-advice/article/how-to-teach-k...
5. https://www.apple.com/education/k12/teaching-code/
6. https://www.idtech.com/blog/how-to-teach-kids-to-code