Aristotle and a lot of other guys that thought about things opined that work gave meaning to life. Those who don't work seek meaning in dumbass ways like busting windows, burning things, and other stuff that can't even get them ahead one iota. Thus:
"But it is clear that the lives of people who do not work are typically lacking in certain goods.
Research shows that physical and mental health are adversely affected by lack of work. You are more likely to suffer from obesity and depression, for example, if you are unemployed. This may be linked to another good that work helps to provide: self-esteem."
Source:
A philosopher's view: the benefits and dignity of work