Well, for many reasons.
1. It is no different than chores in the city or the suburbs. Dishes - Milkin' cows... Not that different. Lol.
2. its invasion of privacy, but thats the governments job right. It doesn't matter if its their home.
3. If they regulate that, they should regulate home schooled children and when both parents work from home or have a home based business.
4. hopefully this is just a question...