You are correct, most people would not starve; however, losing one's job is not something to be taken lightly. I imagine the following would be a very difficult conversation with your family: "Well, I just didn't quite feel like working today. As a result, I lost my job. You may have to go without many of the things I have previously worked so hard to get for this family, but at least everyone won't starve."
EDIT: Also, the issue of hunger in the United States is much more serious than you think.
Some people do not have such a luxury. I cannot arbitrarily decide to ignore my daily duties simply because I don't feel like working. I'd be fired. The same goes if you are a business owner in charge of your working hours. You cannot arbitrarily decide that your client portal outage doesn't matter because you don't feel like working. Your client is going to fire you.
EDIT: Also, the issue of hunger in the United States is much more serious than you think.
http://feedingamerica.org/hunger-in-america/hunger-facts/hun...