In the United States, an individual homebrewer is allowed to brew 100 gallons of beer a year. A household with two or more adults over 21 years of age is allowed a maximum of 200 gallons.
The SheppyBrew "Brewery" brews significantly over 100 gallons most years, and we're on track to get over 100 again this year.
So ... mostly jokingly, I say that the Beer Model has to brew in order to keep me out of jail.
I'm honestly not sure who is supposed to enforce this 100 (or 200) gallon limit. I suspect that no one actually does, so I don't think I'm in any real danger of going to jail for brewing too much beer.