Bullsqueeze! This law was passed (probably at the urging of the Vets lobby) to provide vets with more work.
People don't 'need' horses.
So they put a reg. on it...just like $100 LTC's...pay for your right.
I owned horses. The farrier floated. The horses seemed bored....and just wanted to get back to eating.
I've never seen a horse in pain' from a float. I, on the other hand, would flinch ...just watching it. YEEEESH!