It would be great if everybody saw code as a utility belt, but I imagine that it would be unrealistic to expect people to develop those skills. When I think about what kinds of tools I use in, say, home DIY projects, I tend to have a decent understanding of a narrow part of the field but not a lot of knowledge about the area in general. I know how to change a light bulb or a fuse or fix a power strip, for instance, but I don't claim to know much about circuits in general.