Think of it this way.
In a cubicle job 100% of your income — the money you need for your family — comes from a single source. The boss has 100% control over 100% of your income. (Personally, that would scare the hell out of me.) If the job goes away, even through no fault of your own, 100% of your family’s income disappears instantly.
Too many bucks in one basket.
As a freelancer, no single company, department, or boss has 100% control over your income. Your living money comes from three, seven, nine, or twelve different sources. It is highly unlikely that 100% of your income could disappear in one stroke. I would have to screw up in biblical proportions to irritate twelve different clients at the same time. Income from multiple sources begets more security, in my book.
Freelancing gives you a more diversified income portfolio.
December: a time for reflection | Speech Marks Translation
[...] insecure, which can certainly be the case starting out. The main point, however, is that you don’t have all of your eggs in one basket. You have several sources of income, and no-one has 100% control of the money you need to feed your [...]