I think the lesson is here it's all fine and dandy until someone does sue you. Then it's a different story.
If you're a 22-year-old with no assets it's probably not much different; you lose a judgment and declare bankruptcy and that's that. If you're older and have a lot of assets, you just do it via a corporation and it's the same, thanks to the magical unaccountability of the corporate veil.
You are shielded far more by your lack of meaningful assets. You aren't worth anything to sue. But there are clients, I promise you, who will turn out to be vindictive.
Incidentally, if you're 22 years old, you should still have an LLC.