You can probably learn as much about coding in a one semester high school elective as you can in the total of grades 1-9 with coding part of the core curriculum.
Do you seriously think the people in your office would be working at a different level of competence if they had all had coding in grades 1-8? 
Programming Concepts and Intro to Computers are all many if not most people will need.  Software tools are making it easier and easier to code. In fact coding is almost minor compared to the business knowledge needed to get the data a user needs. 
Anyone can learn spread sheets  or report generators in their living room. What's much more difficult and requires more experience is the business end.  That's one reason why there are so many overseas people over here doing what is in essence the  grunt work of coding.

The push for programming for the masses is probably being pushed by parents who don't know any better and IT manufacturers.