You do not need to be building a new venture, or taking risks, or trying out unproven ideas. You need to get a job and make money so you and your family don't starve to death.
It sucks that you're in a place where nobody shares your motivation, but you still need to eat.
I don't think this is helpful. He can provide for his family with out a "9 to 5". He could contract remotely, for example. And he could work on side projects with an eye to the future, which would help keep his spirits up through this period.
I think the important message isn't that a job is from 9am to 5pm, but that you have a job that pays a regular paycheck based on hours worked. mattman is not in a situation to not be making any money.
It sucks that you're in a place where nobody shares your motivation, but you still need to eat.