[orangebox]

Most people who own cars have little interest in how they work under the hood. Same is true for computers today. It's not just true for machines but all parts of life. I know several adults who hardly ever cook, despite that fact that they've been eating meals cooked by other all their lives. Using something doesn't necessarily mean you'll want to learn how to create it yourself.

[kranzky]

That's true, with the exception that learning how to write a program is also a lesson in how to think logically. Rather than teaching everyone to be programmers, the goal could be to use programming as a tool to teach everyone how to think.