If we lived in a more "self-sufficient" economy, then not being part of the labor force would be somewhat manageable. However, given that we can't just "live off the land" -- though many of us would probably find that lifestyle fascinating -- if you want to be able to participate in a modern economy, then you must work.
Therefore, anything that prevents individuals from having a job (whether it's cyclical, frictional, structural, etc.) so that they can provide for their families is a critical issue for individuals, households, and society.
