[ido]

It really depends on where on the range of earnings you are. In Germany earning minimum wage nets you virtually the same amount of money as being chronically unemployed (when taking into account various benefits, like social housing and free transit for the unemployed).

And the benefits are regular and safe relative to a lot of badly paid work opportunities (especially they are not a regular full time job).

I don't think this makes as much sense as e.g. a programmer earning €50k/year vs €80k (especially if you're married with kids, which gives you huge tax deductions here).