One man shows don't need it they need the exemption and some good disability insurance.
You bring up a good point here! When I first started and worked with one other helper, I had an exemption. I joined a "small business alliance" that had a health care coverage that covered me and my family at all times, and covered up to 4 employees while on the job. With that, my helper and I had a long term disability coverage.
The coverage was about 30% cheaper than FL WC and it covered much more. If you really look at WC and what it covers and the limits, no one in their right mind would carry it without being forced!
If you've ever had to collect WC for anytime longer than a few weeks, you'll likely didn't receive the full amount you were promised, when you were promised, and you likely had to pay a lawyer just to get it.
Your recourse options against WC is typically very limited, and the employer typically gets screwed, again!
If you're small enough to be under the requirements for your state, do some google searches for small business health care and small business groups/alliances that get you in a coverage bundle. You'll find a fully private company that will offer you better service, better product, and a better price than most "state sponsored" WC policies!
If you have employees, WC stops them from taking legal action against you (sometimes!). That is missing in the other policy I mentioned, but the policy is still better for your employee than WC. And, in court, with the right lawyer and/or jury, you looking out for your employee will win for you if an ungrateful POS employee sues you anyway!