Most people don't even have the slightest idea what kind of problems software can solve. Jeff Atwood seems to interpret "learn to code" as "learn to set the DYLD_LIBRARY_PATH variable". Others—myself included—think that having at least a bit of exposure to programming provides you with a better overall understanding of how computers operate.
I don't think it's necessary to have that understanding. But neither is speaking a second natural language. Apart from acquiring the skills themselves, learning any of those will teach you meaningful things about yourself and your environment, which seems to be worthwhile.